Knock Knock Homicide Hunter: Lt. Joe Kenda : Season 7 Episode 4
TV-14 (self-applied) Investigation Discovery 43m
Aired: September 13th, 2017 @ 9:00 PM EST on Investigation Discovery
A gathering of friends turns deadly after two gunmen shoot William Davis in the head; while the witnesses are unable to provide any solid leads, Lt. Joe Kenda digs into Davis' past and starts to suspect someone in William's circle is lying.
