The Unsolved

In March 2025, 20 year old Sudiksha Konanki flew to Punta Cana with five friends from the University of Pittsburgh. She was a pre-med student from Northern Virginia. Born in India, raised in the U.S. Smart, driven, the kind of kid her family was proud of. It was spring break. A beach resort. Sun and parties. On the night of March 5, the group went out to a club. Around 4 a.m., a bunch of them wandered down to the beach. Security cameras recorded Sudiksha walking toward the water, arm in arm with a 22 year old college student from Iowa she'd met at the resort. Around 5:55 a.m., her friends headed back to their rooms. Sudiksha stayed on the beach with him. That was the last time anyone ever saw her. He later told police they'd waded into the ocean together. A big wave knocked them both down. The current dragged them out. He said he struggled to help her, and somehow they both made it back to shallow water. He said he threw up on the shore. She told him she was going to grab her things. Then he passed out on a lounge chair. When he woke up, she was gone. Her clothes were still sitting on a beach bed nearby. The search was massive. The Dominican Navy and Coast Guard, divers, drones, helicopters. U.S. agencies and Interpol got involved. They found nothing. No body ever washed ashore. The young man was questioned for days and kept from leaving the country. A Dominican judge eventually cleared him. He has never been accused of any crime. Dominican officials concluded she most likely drowned. Her parents said they believe it was a tragic accident, and asked the government to declare her dead so they could grieve. But back home, the sheriff in her Virginia county kept asking for all the evidence, including a video said to show the two of them in the water. He wasn't ready to close the book. The ocean has never given her back. 19 months later, Sudiksha Konanki is still missing. She walked down to a beach at dawn on spring break. And only one person came back.

On March 27, 1985, 22 year old Karen Wilson was counting down to spring break. She was a senior at the University at Albany in New York, a political science major originally from Utah. She was interning for the state Assembly. In a few days she'd be on a beach in Fort Lauderdale. That afternoon, she left her dorm to get ready for the trip. She shopped for some new clothes. Then she went to a tanning salon on Central Avenue, a few miles from campus. At 7:20 p.m., she walked out of the salon. That's the last time anyone can say for certain that they saw her. But three different people, who didn't know each other, all called police later with the same story. Between 8:10 and 8:20 that night, they saw a young woman matching Karen's description walking alone down Fuller Road, heading toward campus. In a cream colored raincoat. White sneakers. She was near a dark, quiet stretch by a small lake and an on-ramp to the interstate. She was almost back to school. She never got there. Karen didn't come back to her dorm that night. She never went to Florida. She never called her family again. Troopers and students searched the railroad tracks and woods along that road. Police divers searched the lake. They found nothing. Investigators believe someone may have pulled her into a car on that dark stretch, right by the highway, and been gone in seconds. Police later released a sketch of a person of interest. He's never been identified. Then, 13 years later, it happened again. Another student from the same school, Suzanne Lyall, stepped off a bus near campus and vanished. She was never found either. 41 years later, Karen Wilson would be 63. Her parents spent the rest of their lives waiting for her to come home. She was a few minutes from her dorm, walking back from getting ready for spring break. Somebody saw her on that road.

On the afternoon of December 1, 1946, Paula Jean Welden finished her shift in the dining hall at Bennington College in Vermont. She was 18, a sophomore art student from Connecticut. Bright, creative, a little restless. Friends said she'd been feeling down lately. She told her roommate she was going for a hike on the Long Trail, the rugged path that runs through Vermont's Green Mountains. She put on jeans and a bright red parka. She didn't bring much else. It was already getting late, and the weather was turning cold. She hitchhiked out of town. A local man gave her a ride and dropped her off near the trail. Later that afternoon, several people saw her on the trail. A girl in a red parka, walking deeper into the woods. One older man said she asked him how far the trail went. As the sun went down, she kept walking. Paula Jean Welden never came back. That night, she didn't show up at her dorm. By the next day, the search was on. Hundreds of people combed the mountains. College students, soldiers, volunteers, tracking dogs, planes overhead. Her father offered a reward. The governor got involved. They didn't find a single trace. Not a scrap of red cloth. Not a footprint in the snow. Vermont didn't even have a state police force back then. The chaotic search was so badly handled that the state created one the following year, partly because of Paula's case. Here's what makes it even stranger. Paula wasn't the only one. Between 1945 and 1950, several people vanished in that same stretch of mountains around Glastenbury. A 74 year old hunting guide who knew the woods perfectly. A man who disappeared from his seat on a bus. An 8 year old boy who vanished from his parents' truck. Most were never found. Locals started calling it the Bennington Triangle. 80 years later, Paula Jean Welden has never been found. A college girl in a red coat walked up a mountain trail as night fell. And the mountain kept her.

In the late 1960s, a killer stalked the San Francisco Bay Area and then dared the world to catch him. It started on December 20, 1968, on a dark lovers' lane outside Vallejo. Two teenagers on their first date were shot to death beside their car. On July 4, 1969, he struck again. A young couple parked at a golf course lot. He walked up with a flashlight and opened fire. The woman died. The man survived. Less than an hour later, a man called the Vallejo police and calmly took credit for both attacks. Weeks later, three Bay Area newspapers got letters. Each one contained a piece of a coded message. The writer demanded they print it on their front pages, or he'd go on a killing spree. He signed it with a crosshairs symbol. Then he gave himself a name. The Zodiac. In September 1969, at Lake Berryessa, he came out of the trees wearing a black hood with that crosshairs symbol sewn on the chest. He tied up a young couple and stabbed them both. The woman died. Then he wrote on the door of their car with a marker, listing the dates of his attacks. In October, he shot a San Francisco cab driver in the head, and mailed a piece of the driver's bloody shirt to the newspaper. The letters kept coming. Taunts. Threats to shoot kids getting off a school bus. More ciphers. He claimed he'd killed 37 people. And in October 1970, a San Francisco reporter covering the case opened his mail to find a Halloween card. On it, the killer had written "Peek-a-boo, you are doomed!" Police investigated thousands of suspects. Their top suspect died in 1992 without ever being charged. One of his coded messages stayed unbroken for 51 years. In 2020, a team of amateur codebreakers finally cracked it. It didn't reveal his name. Just this week, police in Riverside renewed their call for tips in a 1966 murder some have long tied to the Zodiac. They announced the writer of one creepy letter in that case had been tracked down through DNA. He was just a troubled teenager seeking attention back then. Not the Zodiac. The FBI says the case is still open. 57 years later, the man who named himself, mailed his victims' bloody clothing to the papers, and taunted police for years has never been identified. He wanted the world to know what he did. He just never told us who he was.

On the morning of April 12, 1981, a 14 year old girl named Sheila Sharp walked home from a sleepover in the tiny mountain town of Keddie, California. Keddie was an old railroad resort tucked into the Sierra Nevada mountains. A few dozen small cabins. Quiet. The kind of place people moved to get away from things. Sheila's family lived in Cabin 28. Her mom, Sue, was 36, a single mother of five who'd moved there to start over. Sheila opened the door. In the living room, she found her mother, her 15 year old brother John, and John's 17 year old friend Dana. All three had been bound and brutally killed. Hammers and knives had been used. The curtains were closed. The lights were off. The phone was off the hook. And somehow, in a back bedroom just feet away, Sheila's two little brothers and a young friend had slept through the whole thing. They were unharmed. But one person was missing. Sheila's 12 year old sister, Tina. She was nowhere to be found. For three years, nobody knew what happened to her. Then in 1984, a man collecting bottles about 30 miles away found part of a human skull. Then an anonymous caller phoned the sheriff and said the remains belonged to Tina Sharp. They did. Suspicion quickly fell on a neighbor and his friend. Years later it came out that the neighbor had written a letter to his estranged wife, claiming he'd paid for her love with four people's lives. He was questioned. He passed a lie detector test. Neither man was ever charged. Both are now dead. The investigation was a mess from the start. Evidence was lost. Files went missing. In 2016, a hammer that matched one the neighbor reported missing was found in a pond near the cabins. In 2018, investigators said DNA from tape found at the scene was linked to a living person. They haven't named who. The cabin was torn down in 2004. 45 years later, nobody has ever been charged with the Keddie murders. Four people died in a little cabin in the mountains while three kids slept down the hall. And somebody took a 12 year old girl with them when they left.

Early on the morning of December 26, 1996, Patsy Ramsey walked down the back staircase of her family's large home in Boulder, Colorado. On the steps, she found a note. It was two and a half pages long, handwritten. It said her 6 year old daughter, JonBenét, had been kidnapped by "a group of individuals that represent a small foreign faction." It demanded $118,000. Almost exactly the amount of the bonus her husband John had received that year. It warned them not to call the police. Patsy called 911 anyway. Then she called friends, who came over to help. Within hours, the house was full of people. Cops, friends, a pastor. Walking through rooms, touching things, cleaning up. Police didn't fully search the house. That afternoon, a detective asked John Ramsey to look around the house with a friend for anything unusual. He went down to the basement. He opened the door to a small room off the wine cellar. JonBenét was lying on the floor, under a white blanket. There was duct tape over her mouth and a cord around her neck. She'd suffered a severe blow to the head. She had been in the house the entire time. And the investigators soon realized something else. The ransom note had been written on a notepad from inside the house. With a pen from inside the house. The world went wild. JonBenét had competed in child beauty pageants, and her face was on every magazine cover and TV channel in America. Suspicion fell hard on her family. In 1999, a grand jury voted to indict her parents. The district attorney refused to sign the indictment, saying there wasn't enough evidence. Then came the DNA. Testing found an unknown male's DNA in JonBenét's underwear and under her fingernails. It didn't match anyone in her family. In 2008, the district attorney formally cleared the Ramseys. Patsy died of cancer in 2006 without ever knowing who killed her daughter. Police say they've followed up on more than 21,000 tips and interviewed more than 1,000 people. They say they're still retesting evidence. John Ramsey, now in his 80s, keeps pushing them to use the same genetic genealogy that's cracked hundreds of other cold cases. This December marks 30 years. Someone wrote a ransom note at that family's kitchen table, while a little girl lay dead in the basement. And they've never been caught.

I love when people say stuff like this as if I’m supposed to have any idea what you’re mysteriously alluding to lol. Just say the version you believe and why

On January 10, 2013, 17 year old Kendrick Johnson went to school at Lowndes High in Valdosta, Georgia. He was a sophomore. A three sport athlete. Quiet, close with his family, a kid with dreams of playing college football. That night, he didn't come home. The next morning, students in the old school gym found him. He was upside down, wedged inside one of the big rolled up wrestling mats that stood upright against the wall. Only the bottoms of his feet were showing. The sheriff's office came up with an explanation almost immediately. Kids sometimes stored their shoes inside those mats. Kendrick must have climbed in head first to grab a shoe, gotten stuck, and suffocated. A freak accident. His parents didn't believe it for a second. When they finally saw their son's body, his face was swollen and badly disfigured. They had him exhumed and hired their own pathologist. He found blunt force trauma to the side of Kendrick's neck. He believed Kendrick had been hit. Then came the detail that shocked the country. When the family's pathologist examined the body, Kendrick's organs were gone. His body had been stuffed with newspaper. The school had cameras in that gym. Questions piled up about the footage, gaps and angles that didn't seem to show what happened. The Department of Justice opened a federal investigation. In 2016, it announced there wasn't enough evidence to charge anyone. The case was closed. His family never stopped. They protested. They sued. Kendrick's name became a rallying cry across the country. In 2021, a new sheriff reopened the case. He offered a $500,000 reward. This April, the family released a photo they believe shows Kendrick's body being dragged inside the school after hours. Days later, the sheriff's office announced the case remains active, and the reward still stands. Officially, Kendrick Johnson's death has never been ruled a homicide. Nobody has ever been charged. 13 years later, his parents still say the same thing they said the morning he was found. Their son didn't climb into that mat. Someone put him there.

In the spring of 1922, an old farmer named Andreas Gruber noticed something strange in the snow outside his remote farmhouse in Bavaria, Germany. Footprints. They came out of the forest and led straight to the farm. There were no footprints going back. The farm was called Hinterkaifeck. Six people lived there. Andreas, 63. His wife, Cäzilia, 72. Their widowed daughter, Viktoria. Her two kids, a 7 year old girl and a 2 year old boy. Andreas told neighbors other strange things had been happening. A set of house keys had gone missing. He'd found a Munich newspaper on the property that nobody in the family had bought. At night, he heard footsteps up in the attic. He searched it. Found nothing. Six months earlier, their maid had quit. She said the house was haunted. On March 31, 1922, a new maid arrived to start work. Her name was Maria. She was 44. She was there for only a few hours. That night, someone lured the family one by one into the barn and killed them with a pickaxe-like farm tool. Andreas. Cäzilia. Viktoria. Her little girl. Then the killer went into the house and murdered the maid in her bedroom, and the 2 year old boy in his crib. Nobody found them for four days. And what investigators learned next was the most chilling part. Someone had kept living there. The cows had been fed. Food had been eaten from the kitchen. Neighbors reported seeing smoke coming from the chimney that weekend. The killer had stayed in the house with the bodies. Police questioned more than 100 suspects over the decades. A neighbor who'd had an affair with Viktoria. Viktoria's husband, a soldier reported killed in World War I whose body was never found. Some believed he'd come home. Nobody was ever charged. The victims' skulls were sent to Munich during the investigation. They were lost during World War II. The farm was torn down a year after the murders. 104 years later, the Hinterkaifeck murders are still unsolved. Someone was hiding in that house before the killings. And stayed there after.

On December 17, 1944, during the opening days of the Battle of the Bulge, a column of German SS tanks rolled through a crossroads near Malmedy, Belgium. They captured more than 100 American soldiers. The Americans were disarmed and herded into a snowy field. Then the Germans opened fire with machine guns. 84 American prisoners of war were killed. Survivors later said SS men walked among the bodies, shooting anyone who moved. The tanks belonged to a battle group led by SS Lieutenant Colonel Joachim Peiper. He was 29, a former aide to Heinrich Himmler, and one of the most decorated and feared tank commanders in the German army. His units had already been linked to massacres of civilians in Italy and on the Eastern Front. After the war, the U.S. Army put Peiper and dozens of his men on trial at Dachau for the Malmedy massacre. In 1946, he was sentenced to death by hanging. He never hanged. As the Cold War heated up, the trial came under fire over claims that interrogators had used abusive tactics. Sentences were reduced. Peiper's death sentence was commuted to life. In December 1956, after about 11 years in prison, Joachim Peiper walked free. He went to work for Porsche, then Volkswagen. In the early 1970s, he quietly moved to a house in the woods near the tiny village of Traves, in eastern France. He made a living as a translator. For years, nobody knew who he was. Then in June 1976, he walked into a shop in a nearby town to buy fencing for his dog. He paid with a check. It had his real name on it. A former member of the French Resistance recognized it. Within days, a French communist newspaper ran a story asking what a Nazi was doing living in France. Leaflets went up around the village. Graffiti appeared on walls, promising Peiper a July 14th he'd never forget. Bastille Day. His wife left for Germany. Peiper stayed. On the night of July 13, 1976, someone attacked his house and set it on fire. When firefighters finally got inside, they found a badly burned body. A group calling itself "The Avengers" claimed responsibility. Some refused to believe the body was even his. Rumors spread that Peiper had faked his own death and escaped. French police investigated. Nobody was ever identified. Nobody was ever charged. 50 years later, the murder of Joachim Peiper is still unsolved. The man the U.S. Army sentenced to hang for killing 84 American prisoners walked out of prison a free man. Then somebody else decided to settle the score.

On May 3, 2007, a British family was on vacation at a resort in Praia da Luz, a sunny beach town in southern Portugal. Kate and Gerry McCann, both doctors, had three kids with them. Their daughter Madeleine, who was days away from turning 4, and 2 year old twins. That night, they put the kids to bed in their ground floor apartment and went to dinner with friends at a tapas restaurant inside the resort. About 55 meters away. They could almost see the apartment from their table. The parents took turns walking back to check on the kids. Around 10 p.m., it was Kate's turn. The twins were asleep. Madeleine's bed was empty. The bedroom window was open. She screamed. And the biggest missing child search of the modern era began. Within days, Madeleine's face was everywhere. Billboards, TV, soccer stadiums. Celebrities and world leaders made appeals. Then the investigation turned on her parents. Portuguese police named Kate and Gerry formal suspects. It took nearly a year before they were cleared. In 2011, Scotland Yard opened its own investigation. Millions of pounds. Thousands of leads chased across Europe. Then in 2020, German prosecutors made a stunning announcement. They had a prime suspect. A convicted German sex offender who'd been living in vans around the Algarve back in 2007. They said his phone was near the resort the night Madeleine vanished. They said they believed Madeleine was dead. But they never charged him. In 2023, investigators dug around a reservoir in Portugal connected to him. In 2025, he walked out of a German prison after serving time for a separate crime. He's never been charged in Madeleine's case. And just this week, the private investigator the McCanns hired back in 2008 issued a new plea. He believes Madeleine may have been taken by a human trafficking network. He says solving it could come down to one name. Her parents have never stopped searching. 19 years later, Madeleine McCann would be 23 years old. She vanished from her bed while her family ate dinner just down the path. And the world still doesn't know where she went.

On November 21, 2022, 11 year old Madalina Cojocari stepped off her school bus in Cornelius, North Carolina, a quiet lake town just outside Charlotte. The bus camera recorded her walking toward her home. It's the last confirmed image of her. Two days later was Thanksgiving. Then the long weekend. Then a week of school. Madalina never came back to class. Her school counselor called her stepfather. Left five voicemails. Sent emails. Nobody at the house reported her missing. Finally, on December 15, almost three and a half weeks later, the school pushed hard enough that her mother came in. Only then did police learn Madalina was gone. Her mother said she'd last seen her daughter in bed on the night of November 23. Her stepfather said he'd left for Michigan the next day, and when he came back, she wasn't there. Neither of them called police. Within days, both were arrested for failing to report a missing child. Then search warrants revealed something chilling. Investigators said some of Madalina's belongings had been burned in a fire pit at the house before she was ever reported missing. The FBI and state investigators joined the search. Woods, lakes, landfills. Tips came in from across the country. Nothing. In 2024, police officially named her mother as a suspect in Madalina's disappearance. Her mother pleaded guilty to failing to report her missing. Then she left the United States. Her stepfather was convicted at trial. This May, an appeals court upheld his conviction. Nobody has been charged with what happened to Madalina. This April, police set up a box outside their station for people to drop off birthday cards. She turned 15. There's a $25,000 reward. Nearly four years later, an 11 year old girl got off her school bus, walked toward home, and was never seen again. And for more than three weeks, nobody who lived with her told anyone she was gone.

In the early morning hours of February 26, 2024, 15 year old Sebastian Rogers vanished from his family's home in Hendersonville, Tennessee, just north of Nashville. Sebastian was a sweet, quiet kid with autism. He wore square black glasses. He liked routine. His dad says he wasn't the type to wander off, and he didn't even like walking around barefoot. He was last believed to be home late on the night of February 25. By morning, he was gone. He was last known to be wearing a black sweatshirt and black sweatpants. Within hours, Tennessee issued an Amber Alert. What followed became one of the largest searches for a missing child in the state's history. Deputies, the Tennessee Bureau of Investigation, the FBI, dogs, drones, helicopters, and hundreds of volunteers combed the woods, ponds, and neighborhoods around his home. Nothing. Not a shoe. Not his glasses. Not a single confirmed sighting. A year later, the Amber Alert was still active. Investigators had received more than 240 tips. Then the case turned into something else entirely. Internet sleuths and YouTubers descended on Hendersonville. Dog the Bounty Hunter joined the search. Accusations flew online. There were protection orders, an arrest, and a stack of lawsuits between family members, content creators, and strangers. Through it all, the sheriff's office has said it hasn't ruled anyone out as a suspect, but also hasn't found evidence of foul play. Then this July, Sebastian's dad filed two federal lawsuits, seeking $10 million from the sheriff's office and the state's child services agency. He says the investigation was mishandled. He also says the state had investigated concerns about Sebastian twice before he disappeared, and never told him. The sheriff's office insists the case has never been closed, and that every credible tip is still being followed. The FBI is offering up to $50,000 for information. Sebastian would be 17 now. His dad still believes he's alive. A 15 year old boy walked out of his house in the middle of the night, and in a town of 60,000 people, nobody saw where he went.

Sad outcome

On the morning of April 21, 2016, 19 year old Martin Roberts told his roommates he was heading to the library. He lived in Boone, North Carolina, a small mountain town that's home to Appalachian State University. He'd been an App State student. He'd joined a fraternity. He loved soccer, and hiking and camping in the Blue Ridge Mountains. He had three mountains tattooed on his left forearm. He'd hit a rough patch the year before. He got in trouble for drinking and driving, took a semester off, and moved back home. Then he came back to Boone and started taking classes at a community college to get his grades up. It was working. He was set to go back to App State in the fall. That morning, on his way across campus, he ran into his cousin. They talked for a while. He walked her to a bus stop on Rivers Street. He told her he was heading to his fraternity house. Around 12:30 p.m., a camera on the bus captured Martin walking away from the stop. That's the last image anyone has of him. He never made it to the library. He never made it to the frat house. His roommates weren't too worried at first. A few days later, his dad got concerned and called the landlord. When they checked Martin's room, they found a note. It was vague. He wrote that he was leaving, that he hadn't taken advantage of the opportunities he'd been given, and that he was disappointed in himself. Police and his family have never been willing to call it a goodbye note. Nobody knows what he meant. He didn't have a car. Someone thought they might have seen him near a lake off the Blue Ridge Parkway. Searchers sent helicopters, divers, dogs, and cadaver dogs into those mountains. Nothing. Two years later, when investigators finally got into his phone, they found something strange. The day before he vanished, he had turned off his location services. His dad has said they still have hope, because they've never been given a reason not to. Martin would be 30 years old now. 10 years later, nobody knows where he was walking when he left that bus stop.

In June 2017, Ashley Loring HeavyRunner was 20 years old. She was a member of the Blackfeet Nation, living on the reservation in Browning, Montana, in the shadow of Glacier National Park. Tiny, about 90 pounds, with a checkmark shaped scar on the top of one hand. Her family says she was close with her siblings and was trying to build a future. Sometime in early June, she stopped answering her phone. Her friends hadn't heard from her either. Her family went to the police. They say nobody took it seriously at first. So her older sister, Kimberly, started searching herself. She drove back roads. She walked the hills. She knocked on doors across the reservation. The story that came back was murky. According to one account, after a party, Ashley spent a few days with an acquaintance. He said he was giving her a ride home when she asked him to pull over along a remote stretch of Highway 89, so she could meet up with another man. He said he was exhausted. He fell asleep in the car while they waited. When he woke up, Ashley was gone. Nobody knows if she got into another car. If someone picked her up. Or if she walked off toward a fire lookout cabin up on a ridge, a place she'd talked about wanting to see. Nobody knows if that story is even true. And then there was the jurisdiction problem. On reservation land, cases bounce between tribal police, the Bureau of Indian Affairs, and the FBI. Her family says precious time was lost while agencies sorted out who was in charge. Ashley became one of the most recognized faces of the Missing and Murdered Indigenous Women movement. Her family has spent years searching the mountains and plains of the reservation on their own. The FBI still has her on its missing persons list. Nobody has ever been charged. 9 years later, Ashley Loring HeavyRunner would be 29. She vanished from the side of a Montana highway while the man she was with was asleep. Somebody knows who she met that day.

In the summer of 2021, 30 year old Lauren Cho was starting a new chapter. Her friends called her El. She was a former music teacher from New Jersey, a Korean American artist with tattoos of a lamb and a mushroom, who'd worked in a tattoo shop back home. She'd traveled across the country with a group of friends, including her ex-boyfriend, in a converted tour bus. They were dreaming about opening a restaurant. They were staying at a rental property in Yucca Valley, California, a desert town near Joshua Tree. On the evening of June 28, after an argument, Lauren walked away from the house. She was upset. She was wearing a yellow T-shirt and jean shorts. She left her phone, her belongings, everything. Even her little pet parrot named Porkchop. Her friends said she hated leaving him. It was around 110 degrees outside. Her ex-boyfriend reported her missing about three hours later. Search teams went out into the desert by air and on foot. They found footprints from her friends who'd gone looking for her. They never found a single footprint of Lauren's. After four days, the sheriff's department called off the search. Investigators later served a search warrant at the property. But for months, almost nobody outside her family and friends had heard her name. Then, in September, the whole country became obsessed with the disappearance of Gabby Petito. People started asking why some missing people get round the clock coverage, and others get nothing. Lauren Cho's name started showing up everywhere. Detectives joined the case. Searches started again. On October 9, searchers found human remains in rugged terrain in Yucca Valley. Weeks later, the coroner confirmed it. It was Lauren. Authorities have never publicly explained how she died, or how she ended up out there. 5 years later, her family is still waiting for answers. She walked away from a house in the desert on a summer night. And for months, almost nobody was looking.

In 1975, Jimmy Hoffa was one of the most powerful and feared men in America. For 14 years, he'd run the Teamsters, the biggest union in the country. Truckers, warehouse workers, more than a million members. Presidents courted him. The government hated him. And he had deep ties to the Mafia, which used the union's massive pension fund like a bank. In 1967, he went to prison for jury tampering and fraud. Four years later, President Nixon let him out, on one condition. No union activity until 1980. Hoffa had no intention of waiting. He was fighting to take the union back. And the men who now controlled it, and the mobsters behind them, didn't want him back. On the afternoon of July 30, 1975, Hoffa drove to a restaurant called the Machus Red Fox in the suburbs of Detroit. He was supposed to meet two reputed mob figures at 2 p.m. He'd been told it was a peace meeting. They never showed up. Around 2:15, Hoffa called his wife from a pay phone. He was annoyed. He told her he'd been stood up. A little while later, witnesses saw him in the restaurant parking lot. Some said he may have climbed into a maroon car. That was the last time anyone saw Jimmy Hoffa. His car was found the next morning in the parking lot, unlocked. The FBI launched one of the biggest investigations in its history. Over the decades, agents dug up a horse farm in Michigan, tore up a backyard, searched a landfill in New Jersey, and chased rumors that he was buried under a football stadium. Nothing. Years later, DNA tests found Hoffa's hair in a car that had been driven that day by a longtime associate, a man Hoffa had practically raised. He always denied any involvement. He was never charged. Old hitmen have claimed they did it. One of those stories became a Martin Scorsese movie. None of it has ever been proven. In 1982, Hoffa was declared legally dead. His body has never been found, and nobody has ever been charged with his murder. This July, on the 51st anniversary, his son wrote to the FBI. He asked them to keep the case open and name the people responsible, even if they're all dead now. The most famous labor leader in America walked into a restaurant parking lot in broad daylight. And vanished.