"Due process" is one of many phrases that their side warps and transforms the meaning of, when they say it they mean "a stalling tactic intended to waste as much time as possible and we look like we have moral superiority if you work against us".
Right, they invented the story about the gentle giant who was viciously murdered by a cop who simply had to sate his bloodlust right there in broad daylight, but that was never what actually happened and it was obvious from the beginning for anybody with eyes to see it.
Fuck you.