I admit I’m kinda disappointed. He pulled out almost perfect assassination that looked well thought out, managed to get away with only a few hickups in his plan as far as his face is considered, and then walks around with a murder weapon and a manifesto in his bag? Shame, really. All he needed was to lay low for a while, grow a beard and he’d probably be OK.
I find that kind of unlikely. If they wanted to frame someone just to have a killer, they wouldn’t be talking about a “3D printed ghost gun”, but just use a regular gun. I, for one, haven’t known that it’s possible to 3D print a pretty well working, and silenced, gun. And that might inspire someone - acquiring weapons is the harder part of any such murder, assuming you don’t want to get caught, and the fact that you can get it without anyone knowing about it makes it way easier.