Its worth a read: https://archive.org/details/david-mcgowan-programmed-to-kill

It basically paints the picture that pretty Much All serial killers appear to be patsies for recorded/tapd ritual killings group.

The patsy enables all killings to fall onto one crazy loon, instead of the group of people ritual murdering people and recording the snuff films. The patsy "serial killer" enables judges and detectives to make the biggest case of their career. Often there Is minimal physical evidence used to tie all the murders to one person but it sure is good housekeeping to keep all the missing persons cases down

Does the media play a role in this whole serial killer propaganda? Well thats the only place you first hear about serial murderers. Does the news pump out the serial killer propaganda to provide cover for ritual murder group?

Does Hollywood glorify these killings as work of one person in TV shows and movies?

Sacrifice one to save the rest.