Problem with the killer being part of the establishment .. because Jamal is now part of the establishment also and he enjoys being a serious asshole to his community, like all drug dealing serial killers mass murderors are IRL - bullying and belittling his peers, even those who could smack him around like the professor who despite being a hulking Denzel enjoys his misery life being the boot of JAmal to the point his wife thinks so less of him and his submissive simp attitude .... Jamal is alive and well and police is not helping Jamal, police is helpind coverig up the killings of Jamal and the killers all the same, covering up all the rapes in the game and murders being all covered up - if killer was part of the alt right, they would clean house, not have the media and the police pin the whole Jamal killings on his own organisation.
A faith based killer would put protecting his fate - hence his alt right mentality and his organisation above all, but everything is pinned on the same organisation you assigned the killer to, even if this would go against his own beliefs.
The fact so many criminals like Jamal and the serial killer following MC have unrestricrted access to the videos Jamal makes and to the videos and the wellfare of MC*s dad, it means they share the same ”underworld” but have no intersection, as cleaning house with Jamal - who is drawing all the attention to himself with club shootings and mass murders all over the place - Denzel would have a field day crushing Jamal and his whole gang of murderors.