To the world, Joseph DeAngelo was a devoted friend, family man, and police officer. But in secret, he assaulted and murdered innocent victims across California for fourTo the world, Joseph DeAngelo was a devoted friend, family man, and police officer. But in secret, he assaulted and murdered innocent victims across California for fourTo the world, Joseph DeAngelo was a devoted friend, family man, and police officer. But in secret, he assaulted and murdered innocent victims across California for four