🔍Joseph D'Angelo was a former police officer who used his knowledge to evade capture for decades.
🕵️D'Angelo committed at least 13 murders, more than 50 rapes, and numerous burglaries, terrorizing California.
😱He had a signature of letting some victims live and taunting them months after the attacks.
💪Innovative detective work, including DNA analysis and genealogy websites, finally led to D'Angelo's identification.
🔒Despite being a former police officer, D'Angelo did not face suspicion from law enforcement until later in the investigation.