FBI Hunt for the Deadliest Multi-State Serial Killer

A 727, a ransom, and a jump into the dark. What followed rewired aviation and ignited a nationwide hunt. This episode traces the real-life chase for Richard Floyd McCoy Jr., from the San Francisco ransom drop to that mysterious bump over Utah sky. Follow the search across Provo’s mud flats, the tip that changed everything, and the fingerprint and handwriting hits that cracked the case. Then the story swerves: a plaster-made .45 in a prison dental lab, a garbage truck jailbreak, a swamp pursuit, and a quiet Virginia stakeout that ends it all. Along the way, the shadow of D.B. Cooper looms large: the tie clip, the parachutes, the identical playbook, and a riverbank discovery years later that kept the legend alive. If you think you know the Cooper story, wait until you see how McCoy’s trail forced new aircraft design and left one question hanging in the air. Watch to uncover the choices, the luck, and the clues investigators still can’t shake. Watch now for the full investigation and decide for yourself.

A cross-country predator leaves a red Chevy behind and a hostage in danger. Inside the dragnet, the FBI pieces together a killer's trail before time runs out. From Sarah Mitchell’s roadside escape to a shotgun standoff with police, this episode follows the breakneck search that begins in West Palm Beach and points to a chilling name: Paul John Knowles. A hidden Volkswagen, a Fort Pierce motel check-in under an alias, and a yellow Dodge Demon tie-ins raise the stakes. As Agent James Cavanaugh builds a psychological profile, evidence links Knowles to a murdered schoolteacher in Jacksonville Beach, a brutal Atlantic Beach killing, and a Milledgeville double homicide traced through stolen clothing and a newspaper clipping. With Deborah Taylor captive and Knowles obsessively scanning newscasts, investigators chase credit card breadcrumbs across dozens of states and a last will that finally reveals his identity. What they uncover about his past changes the urgency of the hunt. Watch to see how a red Impala, a forged identity, and a terrifying confession push the FBI to close in before he kills again.

In the summer of 1999, Texas was terrorized by a brutal serial killer who traveled by train. The FBI assembled a task force to gather information about the dangerous drifter and create a profile that would help locate him. Unravel the mystery alongside the FBI's greatest law enforcers and forensic scientists. Season 5 Episode 6: An FBI task force conducts an international manhunt to find a Mexican serial killer.

In June 1973, a young girl was abducted from a state park on the Missouri River while camping with her family. Several months passed with no leads, then an FBI agent took a particular interest in the case.

The FBI hunts for a sophisticated criminal in Chicago after a wealthy club owner is gunned down in his own garage. Investigators initially suspect a carjacking, but the facts reveal a calculated, purposeful murder. All roads lead to the victim's beautiful fiancée, Catherine Sue, an attention-seeking socialite obsessed with a lavish lifestyle. But as police look closer, they see an unsettling pattern: Catherine's mother was also a murder victim seven years before, and she collected a massive inheritance in both deaths.

After two serial bank robbers escape from police custody, FBI agents familiar with the bandits believe that they would attempt a grand-scale heist.