The Netflix documentary, entitled The Sons of Sam: A Descent Into Darkness, will see filmmaker Joshua Zeman explore the Son of Sam killings, and try to assess whether Berkowitz acted alone.
Netflix has released the first trailer for a new documentary series based on the famed Son of Sam serial killer.
The Sons of Sam: A Descent Into Darkness will arrive on Netflix on 5 May.
The Son of Sam killings also attracted widespread media attention at the time, due in part to a number of gloating letters sent by Berkowitz to the police, while he was still at large.