Timeline of the Jonestown Massacre

Each year, government estimates suggest roughly 200,000 Americans are involved in cults—often in secret and largely by choice. Who are they? And what can we learn from the tragic story of Heaven’s Gate?

Who was Jack the Ripper? Various theories about his -- or her -- identity have circulated for decades.

Revisit the deadly sprees of some of history's scariest serial killers—including one who was never captured.

There's more than meets the eye to Al Capone, the Prohibition-era leader of organized crime in Chicago.