Notorious Criminals

Beginning in 1978, a string of university, airline and mail bombings terrorized the country, injured 23 people, and claimed three lives. Investigators chased down hundreds of leads, but for years, the bomber's identity remained a mystery. He was known to the public only as "the Unabomber" until a particular turn of phrase led authorities and introduced the world to Ted Kaczynski.

Never before had Americans seen such an atrocity on their own soil. A 1995 bombing in the heartland destroyed 16 blocks of downtown Oklahoma City. Over 800 were injured in the blast, and 168 men, women, and children were killed. It was an explosion that shook a nation. Even more disturbing, Timothy McVeigh, the accused mastermind with a history of extremist beliefs.

Aaron Hernandez was one of the NFL's brightest young stars. With a newly signed $40 million contract, his future looked limitless. But when a member of Hernandez's inner circle was brutally murdered, the football star became a prime suspect. And the ensuing investigation would reveal a troubling dark side. What drove a star athlete with the world at his feet to commit cold-blooded murder.

It was the flying saucer seen round the world. A silver, helium-filled balloon racing across the Colorado sky with a reported stowaway onboard. As millions of viewers held their breath, hoping for a safe landing, the story went viral. When the balloon came down the mystery only deepened. Six-year-old Falcon Heene was not onboard. The media spotlight and police scrutiny intensified on his parents.

A young heiress from one of America's richest and most politically connected families, kidnapped by a mysterious underground militia. Then incredibly, the captive appeared to turn criminal, joining her captors on a crime spree that climaxed in a massive shootout on live television. The public was outraged, confused and fascinated.

It was one of the most talked about crimes of the 1970s, an outrageous caper at 10,000 feet. The only trace the perpetrator left behind was a note and phony name - D.B. Cooper. But five months later, it happened again. This time it was a man named Richard McCoy. Were they two different people or was DB Cooper really Richard McCoy.