Tracking the Murders of Israel Keyes Forty Eight Hours : Season 33 Episode 31
TV-14 CBS 1h 00m
Aired: May 16th, 2020 @ 10:00 PM EST on CBS
The FBI believes skulls drawn in blood are the number of victims murdered by a prolific serial killer. Inside the FBI's search to identify them. "48 Hours" correspondent Peter Van Sant reports.
