James Joseph DeAngelo was once engaged to Bonnie Lee Colwell. In their engagement announcement in a local California newspaper, it described her as a lab assistant at Sierra College. Police say the serial killer screamed "I hate you, Bonny! I hate you, Bonny!" while he was carrying out a terrifying attack in the 1970s. Information from GEDmatch led detectives to a family member of DeAngelo. They then used other information they had amassed about the Golden State Killer to close in on DeAngelo.