So there's a Howard "mindframe" here. VIDEOS ARE INDISPUTABLE EVIDENCE and Howard was going to create "indisputable evidence".
The only difference is that Old Man Marshall states that: "I am---- Marshal...and I am of Sound Mind."
That's it! That's HKillerS's MO (modus operandi in this instance). He films everything. I wonder if he filmed girls in the locker room when he was in high school.