“””””In both cases, they should be treated the same as non-police - immediately arrested, charged and let the jury sort them out. “””””””””
In most cases they would wait for the autopsy and tox report to come back before deciding that.
They just immediately decided it was murder and didn’t bother with anything else.
If cops came upon the scene shown in the video, with four citizens detaining a fifth in exactly the way shown in the video, they would NOT have waited for autopsy or tox, and you know it. All four of the citizens involved in detaining that person would have been instantly arrested, charged with something and thrown in jail pending bond.
You know it, I know it, everyone knows it. Don’t pretend otherwise.