Drawn together by shared childhood trauma, Henry Lee Lucas and Ottis Toole became lovers — then serial killers who terrorized America in the 1970s.

In the late 1970s, up to 3 million people died in the Killing Fields of the Cambodian genocide. This is what it looked like.

The Ukrainians call the famine the "Holodomor," a name that means "murder through starvation."

These rarely-seen photographs of the Kent State Massacre provide a harrowing look at the day the '60s died.

How "Wild Bill" Hickok rose from humble Quaker roots in Illinois to become a legendary lawman and gunslinger of the Wild West.

Millionaire John du Pont was certainly eccentric, but Dave Schultz never anticipated that he could be a murderer.

The horrifying story of how Dorothy Stratten got pulled into a deadly world of fame, porn, and violence, and the men who kept on exploiting her even after she was dead.

While being on the spectrum can sometimes create challenges, these famous people with autism have been able to use their unique way of seeing the world to achieve great feats.

Adolf Hitler literally trusted Erwin Rommel with his life. He never could have expected that in 1944, the "Desert Fox" would join a conspiracy to assassinate him.

Much of what we know about the Picts comes from the Romans, who praised the military prowess of these ancient Celtic people.

Thousands of poorly trained kamikaze pilots were asked to sacrifice their lives for Japan's collapsing war effort, but the letters they left behind reveal they weren't all eager volunteers.