Over a three-day period in 1990, five college students are found dead in Gainesville, Florida. Panic fills the city as investigators search for the killer.

It would take investigators months before they identified who the serial killer was. And the suspected killer wouldn't make the road to justice easy for anyone.

In 2002, 14-year-old Elizabeth Smart was kidnapped from her Salt Lake City home in the middle of the night. To the public, it seemed as if she had vanished into thin air.

In a harrowing, nine-month ordeal after Elizabeth Smart is kidnapped, she is hidden in plain sight on multiple trips to Salt Lake City and is remarkably saved.

In 1994, Susan Smith reported that she had been carjacked and her two young sons had been abducted. Her report set off a nine-day, nationwide search.

The boys' dad shares the heartbreaking story of their deaths and his then-wife's deception. Investigators explain the clues that led them to the horrific truth.

In 2007, Drew Peterson's wife, Stacy, goes missing. The case raises shocking new questions about the death of Drew Peterson's third wife, Kathleen Savio.

Teen idol David Cassidy became an overnight sensation in the 1970s. His tragic death years later left his family, friends and fans with more questions than answers.

On April 19, 1995, Timothy McVeigh detonated a bomb in downtown Oklahoma City, killing 168 people. Here's a look back at the events that led up to the attack.

In this episode about the Oklahoma City bombing, the bomber gives an exclusive interview. Survivors and family members of victims describe the attack's impact.