A four-part docuseries available Wednesday on Netflix. Berkowitz looked nothing like the police sketches drawn from the memories of surviving victims. He had a neighbor in Yonkers named Sam Carr — owner of the supposedly Satanic dog who ordered Berkowitz to commit the crimes. Sam Carr had two sons, John and Michael, who died in separate incidents within two years of Berkowitz’s arrest. Berkowitz claimed the Carr brothers had taken part in the killings. (They were never charged.) Building blocks are laid down to form the foundation for a credible argument there were others involved. Around the three-quarters mark, we’re still fairly certain Berkowitz didn’t act alone, but we’re also nearly lost in the weeds of an expanding web of murders and suspicious deaths that expand to the West, not to mention a thicket of conspiracy theories involving Satanic cults and a controversial church and literally dozens of tangential storylines and characters.