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 and take his own life?

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, an ex-Vietnam vet turned highjacker?

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 and violent defiance was also a decorated American veteran.

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.

They called her La Madrina, the godmother of cocaine, a brutal drug lord who crushed anyone who stood in her way. As the ultimate black widow, she built a narcotics empire in the city of Miami and ignited the cocaine cowboy drug wars. Before Pablo Escobar and before El Chapo, there was Griselda Blanco.

Demetrius Holloway quickly rose to become one of Detroit’s most notorious drug kingpins with the help of a gang started by four brothers known as the Best Friends. But when the Best Friends decide to go into business for themselves, childhood friends become bitter – and deadly – enemies.

Nicknamed “Little Nicky” because of his size – he stood 5 feet 5 inches tall and weighed 135 pounds – but no one dared call him this to his face. Scarfo rose to power during one of the bloodiest periods in Philadelphia organized crime history. More than two dozen mob members or associates were murdered between 1980 and 1985 as Scarfo took control of the Philadelphia mob. Scarfo was drawn to the limelight as he frequently boasted to associates about the murders he committed and about his status in the underworld. His victims included an Atlantic County municipal court judge, an Atlantic City cement contractor, a longshoreman and several mob associates.

A Mexican Drug Lord and former leader of the Sinaloa Cartel – considered by many one of the most powerful drug traffickers in the world – receiving the title of “biggest drug lord of all time.” The DEA considers him “the godfather of the drug world” some even say he surpassed Pablo Escobar in reach and influence.

A Live Series following Law Enforcement Officers On Patrol across the country – all live and in real time.

A discussion of what’s in store for the upcoming episode of “On Patrol: Live” and a sneak peek of the departments and officers that the cameras will be following that night; the hosts also look back at the most memorable moments from past episodes.

A Live Series following Law Enforcement Officers On Patrol across the country – all live and in real time.

A Live Series following Law Enforcement Officers On Patrol across the country – all live and in real time.