About this episode
The FBI believes skulls drawn in blood are the number of victims murdered by a prolific serial killer. Inside the FBI search to identify them. "48 Hours" correspondent Peter Van Sant reports. *This program originally aired on May 9, 2020.* To learn more about listener data and our privacy practices visit: https://www.audacyinc.com/privacy-policy Learn more about your ad choices. Visit https://podcastchoices.com/adchoices