Raymond Fernandez and Martha Beck bilked at least three women out of their life savings before gruesomely murdering them in the late 1940s — after luring them in with "lonely hearts" ads.

Sherri Rasmussen was found shot to death inside her home on February 24, 1986 in an apparent burglary gone wrong — but the real culprit was actually Stephanie Lazarus of the LAPD.

Travis the chimp was a beloved animal actor and a local fixture in his Connecticut town — until he viciously attacked his owner’s friend Charla Nash one day in 2009 and nearly ripped her face off.

Barbro Karlén believed she was different as a child but didn't know why until she read the diary of Anne Frank — and realized she had lived as Frank in a past life.

On June 27, 2000, Molly Bish's mother dropped her off at work in Warren, Massachusetts — and never saw her alive again. More than 20 years later, police still have no idea who killed her.

When followers of philosopher John Duns Scotus became the laughingstock of Renaissance-era Europe for their outdated beliefs, their once-fashionable "Duns" caps turned into a symbol of stupidity.

Lauren Giddings' neighbor and classmate, Stephen McDaniel, strangled and dismembered her before scattering her body parts in trash cans across Macon, Georgia.

Anneliese Kohlmann brutally beat and sexually exploited female concentration camp prisoners — but she was sentenced to just two years in prison for her war crimes.

When William Leonard Pickard was arrested by the DEA in November 2000, agents allegedly seized enough acid for 400 million trips from his missile silo lab in Kansas.

Traudl Junge thought of Adolf Hitler as a father figure and a friend — claiming she had no idea about the Holocaust until after World War II ended and the Führer was dead.

The granddaughter of Ernest Hemingway, Margaux Hemingway struggled with her fame after she became an overnight celebrity and the world's first million-dollar supermodel in the 1970s.