In the summer of 1974, the handless body of a woman was found along the beaches of Provincetown, Massachusetts. Her identity, along with the identity of her killer, would remain unknown for nearly 50 years.
Police believe Jill Blackstone planned to kill her sister, who suffered from hearing and sight loss, for some time before Wendy Blackstone died of carbon monoxide poisoning.
More than a decade after her two sons were adopted, Kisha Schaberg plotted to reconnect with her biological children and kill off their adoptive parents.
A series of prison recordings with the murderer and sex offender unearths new truths in the Peacock original docuseries Richard Ramirez: The Night Stalker Tapes.