Season 5

Focuses on the June 1982 murders of Houston attorney James Campbell and his wife, Virginia, an unsolved case involving family secrets and an undercover investigation.

Examines a series of brutal, unsolved murders in 1979 in Houston where5 young people were killed, with some bodies found decapitated, leading to questions about a potential serial killer.

In the summer of 2003, the quadruple murder of four teenagers left the Houston suburb of Clear Lake stunned. Rachael Koloroutis, Tiffany Rowell, Marcus Precella and Adelbert Sanchez had just graduated high school and were looking forward to starting college - until someone shot the four friends to death at a house party.