The Wonderland Murders (UK Documentary)

This is the true story that inspired Boogie Nights with Burt Reynolds and Mark Wahlberg, Wonderland with Val Kilmer, and at least one cheesy reenactment show on ID. In the seventies, John Holmes was the most famous male performer in the newly mainstream adult film industry. He eventually became addicted to cocaine, and the addiction led to his involvement in the murder of four people in 1981.

BONUS: From Live Leak, here is the raw police video from the crime scene. Extremely graphic!