Together with "I'll be gone in the Dark" (HBO) and "The Golden State Killer: It's Not Over" (Discovery ID) I think u can complete your view and info enough to understand the case.
Hopefully there will be something in the years to come about motives, moves and history on the no longer unsub. I'm sure John Douglas will have a part 2 "Killer across the table" including the man that had 5 nicknames.
Seeing this series on one friday afternoon you realise the ammount of repetion there is. The amount of times the same things are said starts to become annoying after ep. 2. The chronology of the facts goes all over the place wich makes it really messy and blurry. A documentary, in my believe, may have some timegaps for suspension, but it has to remain informative. Too say in episode 3 that everyone in Sacramento was scared after the first 15 attacks is like totally irrelevant. I am sure they were, but it doesn't add annything besides getting your 40 minutes program. The first 5 episodes could have been compressed to two hours.
Also the ammount of times the different commentators say something in the proximity of "we have to catch him" or "we wanna know why he does this" or "we hope he will be caught" is annoying. I mean... duh... That also goes for the ammount of obvious remarks a 5 yo could have come up with. "After 50 crimes in this area you can be sure he must have lived in the area or at least felt save there." No.... really? What an insight.
The completeness of the information is great but the presentation is dissapointing.