After vanquishing his rivals, crime boss Carlo Gambino took control of the Mafia's Commission and made the Gambino family into the most powerful outfit in America.

In 2001, Kathleen Peterson was found dead in a pool of blood at the bottom of the staircase in her home. Two years later, her husband Michael Peterson was convicted of her murder — but many believe he didn’t do it.

Beginning in 1978, Christian Gerhartsreiter took on numerous identities as he conned and killed his way into America's upper crust — then passed himself off as a distant relative of the Rockefeller family for 16 years.

Following a long downward spiral marked by substance abuse, Elvis Presley died of heart failure on August 16, 1977 in Memphis, Tennessee at age 42.

Perhaps the most fearless mobster of all time, "Crazy Joe" Gallo took on his own bosses in the Colombo crime family and sparked an all-out civil war that finally ended with his murder in 1972.

The Sahara was once a grassy woodland until human activity and a changing climate turned it into the immense desert we know today. The Berbers were the only people who decided to call it home.

Mackenzie Phillips says she and her father began a sexual relationship in 1979 when she was 19 that would ultimately last for over a decade.

Charles "Pretty Boy" Floyd managed to have a long criminal career in a relatively short life before being gunned down by the FBI in 1934.

Many Americans know the Hatfields and McCoys infamously didn't like each other, but just how bad was the animosity between these two families on the West Virginia-Kentucky border?

Also known as the choke pear or mouth pear, the pear of anguish delivered unbelievable physical pain and sexual violation to its victims.

Made famous as the openly gay drug lord depicted in "Narcos," the real-life Hélmer "Pacho" Herrera took the Cali Cartel to unparalleled heights of power and wealth in the 1980s.