The mysterious death of Frank Hilley and the disturbing symptoms his daughter exhibited afterward as well as the crimes of sniper Charles Whitman are explained.

An immigrant's fiery death kicks off a manhunt. A deadly and mysterious illness strikes down a runner and threatens the lives of others.

This episode explores the case of Frank Olson, a scientist who worked for the U.S. government and whose death was initially ruled a suicide until a revealing autopsy.

A newborn's death leads investigators to believe the mother is to blame. This as well as the death of writer Sherwood Anderson are probed in this fascinating series opener.