The FBI has been known to use mentally ill people. You can't do something like this without the involvement of a three letter agency, one way or another -- either direct, or as instigators and enablers.
Discussion
bingo. and way more plausible than an act, that's for sure. now imagine the chaos if this episode was only and literally the trigger for a real and accomplished future murder? a funeral and that's it? not only biden would be outta the game but kamala would probably declare a state of emergency.