The remains of six men discovered beneath Nancy Spain's bar in Cork, Ireland, likely died violently between 1447 and 1636.

John F. Kennedy Jr. was just 38 years old when he died in a tragic plane crash on July 16, 1999 — and not everyone believes that it was an accident.

When suitcases containing human body parts began washing ashore along the Chesapeake Bay in May 2004, police quickly followed the bloody trail of evidence to Melanie McGuire, who they believe killed her husband Bill to start a new life with her secret lover.

The carnivorous abelisaurid dinosaur, as of yet unnamed, roamed the Earth some 98 million years ago.

Bethany Decker was last seen on January 29, 2011, but no one reported her missing for three weeks because someone continued to send messages from her Facebook account.

The frogs may have been eaten by humans living at the site, or the amphibians may have suffered a "prehistoric frog tragedy."

It's unclear why the elephant targeted the woman, though wildlife officials say that elephants rarely attack without provocation.

For years, Lynyrd Skynyrd frontman Ronnie Van Zant claimed he would die before 30. Then when he was still 29, he was killed in a brutal plane crash in the Mississippi woods.

Investigators revealed this week that "Baby Holly" had been left at an Arizona church by members of a mysterious nomadic group.

Leon the sled dog went missing in March after slipping out of a checkpoint, launching a months-long search.

In February 2013, Christopher Dorner killed four people as part of his revenge against the Los Angeles Police Department — sparking a nine-day manhunt.