Phil is too afraid of dying to go full Aloha Snackbar and strap a suicide bomb to himself. But someone could suck up to him, stroke his ego, make him feel important and part of "the cause", and use him to drop off a bomb or set him up to take the fall for something else. He's the perfect fall guy for some radical Leftist group. Just have him at the right place at the right time to get scooped up by the law while they slink away into the shadows. Phil has a long history of posting violent rhetoric and threats to his social media. He was once investigated by the Secret Service when one of his rétarded anime doodles was taken as a possible threat. Someone as stupid, clueless, and eager to be included as Phil could EASILY be manipulated in such a way. And he'd go along with with that goofy mongo grin on his moon face, blissfully unaware that he's being set up to take the wrap for his new "friends". All they'd need to do is not let him know their real identities or where they live. It would be quite easy, really.