The Unicorn Killer People Magazine Investigates : Season 3 Episode 10
TV-14 Investigation Discovery 45m
Aired: January 22nd, 2019 @ 9:00 PM EST on Investigation Discovery
[Where is Holly Maddux?] In Philadelphia, police make a horrific discovery 18 months after a woman goes missing; the police pursue the woman's killer, but he always manages to stay one step ahead of the law.
