The Tylenol Murders, drops on Netflix this May, revisiting a chilling incident that shook America. Created by Joe Berlinger, ...

A new Netflix docuseries is diving into 1982's unsolved Tylenol murders case, which involved seven victims killed in Chicago.

Who really laced Tylenol with cyanide? Netflix's true-crime series examines alarming theories behind the unsolved killings, and tracks down a key suspect.

Premiering in May, "Cold Case: The Tylenol Murders" chronicles one of the largest U.S. criminal investigations in three parts, featuring an exclusive interview with one suspect, Netflix said.