Investigators use laser mapping technology to map the crime scene and determine where the killer was standing during the crime.

Elizabeth Smart explains how difficult terrain thwarted any plans she may have had of escaping her abductors.
Naomi Ekperigin examines Ted Kacynski, a.k.a the Unabomber, including his early admission to Harvard at 16 and final break from society.

Romaine Jenkins investigated many horrifying crimes as the first female homicide detective in Washington, D.C., but one still haunts her.
Naomi Ekperigin explores the life of America's first known serial killer, H.H. Holmes, and his infamous "murder hotel" in Chicago.