Investigators in California obtained the DNA of suspected Golden State Killer Joseph James DeAngelo by swabbing his vehicle door and taking a used tissue from his trash, according to court documents a judge approved for release Friday.
Authorities arrested Joseph DeAngelo, 72, in April.
After identifying DeAngelo as a suspect, investigators followed him to a store in April and took a swab from the handle of a door he used. Sgt. Ken Clark. "This vehicle door swab was submitted to the Sacramento DA crime lab for DNA testing".
Five days later, investigators collected more "surreptitious samples" from a trash can outside of Mr. DeAngelo's Citrus Heights, Calif., home, the warrant said. As he walked into the craft store, it gave them a ideal chance to collect a secret DNA sample.More news: WWDC 2018 will be all about software: No new hardware announcements
According to the arrest warrant, DeAngelo is "47.5 septillion times" more likely to be the Golden State Killer than any other, unrelated person.
The Golden State Killer - also known as the East Area Rapist, Original Night Stalker and the Diamond Knot Killer - is believed to be responsible for at least 12 killings and 45 rapes between 1976 and 1986 in the Sacramento, Central Valley and Southern California region.
Santa Barbara County prosecutors have filed four counts of capital murder against DeAngelo in connection with four homicides committed in Goleta.
The 171 pages released in arrest affidavits and search warrants provide a grisly timeline of his suspected crimes, statements from victims and composite sketches, including one side by side with a photo of DeAngelo when he was working as an officer for the Auburn Police Department.More news: Giuliani: Trump team would try to avert subpoena
According to the warrant, police believe DeAngelo is also the Visalia Ransacker, a man who burglarized around 120 homes in the Visalia, California, area in the mid-1970s, generally taking only personal trinkets of little value.
Authorities also listed items stolen during his suspected crimes, including jewelry, photos, keys, a hairbrush and clothing such as a woman's bathrobe.More news: Six dead or missing after Guatemala's Fuego volcano erupts