Is The Serial Killer Connection coming back?

The Serial Killer Connection ended on October 21, 2026, on Investigation Discovery. The show aired its entire first season over three episodes from October 7 to October 21, 2026. There are no upcoming episodes scheduled, and the series has concluded its run.

The series was a crime documentary that explored the aftermath of a serial killer’s crimes through the personal stories of those affected. It focused on Bonnie Lou, who married Richard "Marc" Evonitz at a young age, only to discover his double life as a serial killer. The show detailed how, decades later, Bonnie Lou and Kara Robinson Chamberlain, a survivor of Evonitz’s captivity, connected through social media and united in their quest to uncover the full extent of his crimes. The series examined their journey to find answers and confront the chilling possibility that Evonitz’s crimes might not have been fully revealed.

Each episode had a runtime of 60 minutes.