Chris Watts, Patrick Frazee, Jayme Closs, Jessica Chambers. All names associated with heinous crimes and cases that have keep America enthralled and that have exposed the truly dark sides of human nature. See our rundown of 4 of the most gripping true crime cases from the last 10 years, only on Investigation Discovery.

Here are five facts to know about the kidnapping and murder of Adam Walsh, son of John Walsh.

Hear are five wild theories about the unsolved 1996 death of hip hip legend Tupac Shakur.

What to know about the confusing and complex case of rapper Meek Mill.

A new limited series on Investigation Discovery, "Serial Killer: The Devil Unchained" is about Todd Kohlhepp.

When police arrested reportedly phone Uber driver Tommy Wayne Beard, he had an unconscious woman in his backseat.

An alleged child molester has been arrested in Indiana who strongly resembles the suspect sketch in the Delphi Snapchat murder case.

On Father's Day, Bill Cosby tweeted from prison that he's still 'America's Dad."

Corey Feldman takes issue with 'Leaving Neverland,' insisting that Michael Jackson never sexually abused him.

Six elderly people have been arrested and accused of having sex in a public park.