Warning Signs John Wayne Gacy: Devil in Disguise : Season 1 Episode 2
TV-14 Peacock 45m
Aired: March 25th, 2021 @ 12:00 AM EST on Peacock
An examination of Gacy's past reveals unsettling evidence that authorities knew he was a sexual predator; still, Gacy was able to evade law enforcement for more than a decade as he committed his deadly crimes.
