The teenager had a history of mental disturbance, but no one could have predicted a murder streak in him.

Jean Hilliard's body was frozen for six hours in -22 degree weather. Miraculously, she survived.

The day before she was murdered, the teen tweeted of her friends, "you doing s* like that is why I can NEVER completely trust you."

Hernán Cortés almost lost his hold on the Aztec capital when the natives revolted.

David Kaczynski felt he had no choice but to turn his beloved older brother over to the FBI, who as the Unabomber, killed three people over a 17-year span — and injured many more.

Benito Mussolini's death at the hands of partisans in Giulino on April 28, 1945 was just as grisly as his violent life.

Ernst Röhm was ruthless in his rise to power in Nazi Germany. Too bad for him Adolf Hitler didn't like rivals — even if they were his friends.

The elder Titanic sister ship, the RMS Olympic was just as lucky as its nearly identical twin was unlucky.

Tex Watson was just a young guy from Texas in 1969 when he came under the spell of drugs and Charles Manson — and helped kill seven people.

A 2017 expedition claims to have definitive evidence of a new continent about as big as India. And the discovery of Zealandia could have international economic implications.

"He takes the form of a huge black dog, and prowls along dark lanes and lonesome field footpaths, where, although his howling makes the hearer's blood run cold, his footfalls make no sound."