On the morning of June 17, 1933, a train pulled into Kansas City carrying the most successful bank robber in American history. Within thirty seconds of stepping off, he was dead. And for the law, the man guarding his body died with him. History remembers the event as the Kansas City Massacre, or the Union Station Massacre, depending on who is telling the story.
The official account blamed three gangsters armed with machine guns. That story helped build the modern FBI. But when five bodies reached the examination table, the coroner carefully recorded what he saw. It took sixty years before anyone argued that his paperwork told a different story, and that some of those bullets and some of those bodies may have come from the wrong weapons.
The man in the front seat of that car was Frank Nash. He had been robbing banks since before World War I, so successfully that historians credit him with nearly two hundred heists. He received a life sentence for murder in 1913, then won a pardon through his own legal arguments. Later came a twenty-five-year sentence for robbery with explosives, and again a pardon, a sign of how corrupt Oklahoma’s justice system could be when a man had friends in the criminal world.
By 1924 he was serving time at the federal penitentiary at Leavenworth. In October 1930, he escaped and vanished. The government chased him for nearly three years before finally capturing him on June 16, 1933, in a cigar store in Hot Springs, Arkansas. One detail mattered greatly later.
The agents who arrested Nash had no legal authority in 1933. They could not make arrests, and they were not even permitted to carry firearms. Many carried guns anyway, because the law had not caught up with the demands of their jobs. That was precisely why they brought along a police chief named Otto Reed from McAlester, Oklahoma.
They needed his authority. Reed carried a shotgun that morning. So did an agent named Joe Lackey. Both shotguns would eventually sit at the center of the entire story.
The lawmen put Nash on an overnight train from Fort Smith, and word of the arrest traveled faster than the train. A corrupt investigator in Hot Springs leaked the secret to one of Nash’s associates. Shortly after midnight, the Kansas City Star published a bulletin that federal agents were transporting the man by rail. A former South Dakota mayor turned criminal named Vern Miller began organizing a reception.
The FBI later claimed he recruited Pretty Boy Floyd and Adam Richetti the night before. Floyd denied being there until the day he died, and that denial became part of the story. Kansas City in 1933 was not merely a stop on the map. It was a Tom Pendergast town.
The entire city was run politically through boss Tom Pendergast and organized crime leader John Lazia, whose influence reached from the police department to the lowest city employee. Multiple sources suggest Lazia coordinated the information that led to the gathering at Union Station that morning. Whether true or not, the city’s atmosphere made such events possible. The train arrived at Union Station at 9:15 a.
m. Seven lawmen escorted the handcuffed Nash through the lobby and out the east doors. A Chevrolet waited in front to transport him. Nash rode in the front seat while Lackey, Smith, and Reed took the back.
As Agent Caffrey moved toward the driver’s door, someone shouted from a green Plymouth: “Let ’em have it! ” The parking lot exploded. Everything collapsed in roughly thirty seconds. Two Kansas City detectives standing outside the car died where they stood.
Caffrey took a bullet to the head and was pronounced dead at the general hospital. Reed was gone. Nash slumped behind the wheel, his head torn open, the very man the entire operation was meant to rescue. The gunmen rushed the car, looked inside, decided everyone was dead, and drove off.
They were wrong. Lackey survived with three bullets in his back, and Agent Smith walked away without a scratch. Then the scene became chaos. Spectators swarmed over the bodies within seconds.
This was 1933. Crime scene tape did not exist, and no one sent a forensic team. The only protection plan was police shouting at people to back away, and it did not work. Bystanders descended like vultures, carrying off evidence and souvenirs, and so did press photographers who had hidden themselves among the cars.
The images ran in newspapers across the country before the blood dried. The most important crime scene of the decade was dismantled by ignorant onlookers. That is a large part of why the FBI case eventually relied on fingerprints taken from a beer bottle in a basement rather than anything recovered at the scene, because those people refused to give back what they took. The man whose job was to understand all that destruction was the only coroner in Jackson County, which meant every violent death in the county passed through his office.
Five bullet-riddled bodies were now his responsibility, all from half a minute of gunfire. It was a summer morning and the whole country was watching. History preserved no personal account from this man, so no one can say what he said when the police cars began arriving. But what he did is known.
He performed his duty thoroughly, documenting the injuries the way coroners do. The case continued around him, and no one noticed anything unusual about his paperwork at the time. The meaning of what he recorded that summer stayed buried in the case records for decades. The official narrative was settled by lunchtime: three criminals armed with .
45 machine guns had slaughtered four lawmen in cold blood. J. Edgar Hoover embraced this version forcefully, using the massacre as his argument for transforming the FBI into an armed national police force. For nearly sixty years, that narrative went essentially unchallenged.
Then a journalist named Robert Unger spent years researching the FBI’s own files on the case. His conclusions were brutal. He argues that the lawmen themselves did most of the shooting and killing that morning. In his reconstruction, Lackey sat in the back seat holding a shotgun he had never fired before.
When the attack began, he fired from inside the car because he was sitting there. When there is no time to get out and shoot at someone, you shoot while seated. Unger believes those blasts blew out the back of Frank Nash’s head and sent bullets flying toward the men standing outside. In his view, the attackers never killed Nash at all.
His own guards did. Then there was Agent Caffrey. Decades later, his son stated publicly that his father appeared to have been killed by friendly fire, struck by a shotgun blast rather than a . 45.
The son had grown up to become a coroner, so he knew exactly what he was looking at when he read the evidence. When the shooting began, Caffrey had not yet entered the car. He had opened the door and was moving from outside toward the driver’s seat. While his father walked in the open, the argument rests on the nature of the wound itself.
The bullet that killed Caffrey came from a shotgun, not a machine gun. As far as anyone knows, the only two shotguns near the parking lot were the ones the lawmen brought with them. The lawmen carried the shotguns into that lot, while witnesses placed a machine gun in the hand of at least one attacker. No one can say with certainty what the attackers carried that morning, and that exact ambiguity is why the case remains unresolved.
Unger’s theory is disputed. The FBI never accepted it, for obvious reasons, and some historians still oppose it, because accepting it requires changing the official narrative completely, even if that narrative was not entirely accurate. The ballistics analysis behind the friendly fire hypothesis rests on research done at the time of the incident or shortly after. It is an interpretation of evidence, not a final verdict.
But Caffrey’s son and family continue to believe in the friendly fire explanation to this day. The massacre transformed American law enforcement, handing Hoover the justification he needed to arm federal agents and expand the Bureau’s power. Yet the bloodied parking lot outside Union Station left behind a question that never fully closed.
The coroner’s records sat in government files for sixty years, waiting for someone to read them carefully enough to ask whether the official story had the killers right, or whether some of those bullets came from the wrong hands entirely.