Known as the "Rotenburg Cannibal," Armin Meiwes killed and ate a willing victim named Bernd Brandes in 2001 before storing the leftovers for 20 months in a hidden freezer.

Gunned down in Medellín on December 2, 1993, "The King of Cocaine" allegedly was shot by Colombian police. But who really killed Pablo Escobar?

Bobby Dunbar vanished in 1912. His reappearance would lead to a custody battle, a possibly wrongly convicted man, and an incredible DNA test 90 years later.

After her husband died, firearms heiress Sarah Winchester built a "mystery house" — allegedly to escape the ghosts of people killed by Winchester rifles.

The Sentinelese have remained almost completely uncontacted on North Sentinel Island for nearly 60,000 years — and anyone who has tried to contact them has been met with violence.

Over the course of 40 years, Sarah Winchester had the so-called Winchester Mansion built in San Jose to her bizarre specifications — in order to appease the ghosts she thought were haunting her.

After developing the V-2 rocket for the Nazis, Wernher von Braun was recruited by America at the end of World War II where he designed the spacecraft that took NASA to the moon in 1969.

After hallucinogenics researcher Richard Alpert was fired from Harvard for drugging his students, he reinvented himself as a spiritual leader named Ram Dass and became an icon of the counterculture.

Junko Furuta was just 17 years old when she was raped, beaten, and killed by four teenage boys in 1980s Japan.

After suffering from mysterious hallucinations for four days straight, Edgar Allan Poe died of unknown causes in Baltimore at age 40 on October 7, 1849.

After his zoning petition was repeatedly dismissed, Marvin Heemeyer decided to modify a bulldozer into a lethal "killdozer" and go on a rampage in Granby, Colorado.