In September 1982, seven people were killed after taking Tylenol capsules laced with cyanide. Though a massive recall and investigation were launched, the perpetrator was never found.

Discover the real facts about Christopher Columbus, from the explorers that beat him to the Americas long before 1492 to his notorious boat troubles on the Atlantic.

The true story of the original Annabelle doll began when she terrorized her first owner in 1970, forcing Ed and Lorraine Warren to take her to their Occult Museum for safekeeping.

While in prison for smuggling 660 pounds of weed in 1974, "Boston George" Jung met Colombian drug trafficker Carlos Lehder. After they were released, they helped make Pablo Escobar the wealthiest drug lord in the world.

At the height of the Cold War in the 1950s, the CIA carried out project MKUltra mind-control experiments by dosing scores of helpless subjects with massive amounts of hallucinogens.

Nancy Spungen was a groupie with an abrasive attitude and a raging drug habit that showed just how dangerous the lifestyle could turn out to be.

Though he's the face of the organization, there's so much more to the Medellín Cartel than just Pablo Escobar.

Bloodletting was used to draw "tainted" blood from a patient, in the hopes that the disease or infection would be extracted out with it.

Though some say the "Falling Man" photo of a 9/11 jumper may depict a man named Jonathan Briley, his true identity remains uncertain.

Beck Weathers was left for dead and fellow climbers had already called his wife to tell her he was gone — then he somehow made it down the mountain and walked back into camp.

By day, John Wayne Gacy performed as "Pogo the Clown." By night, he murdered dozens of men and teenage boys.