I hasten to add....Schizophrenia is the “EASY” answer.....
There is way way more to this issue than one graduate student going rogue....he may be an idiot savant, but even given that...there are WAY too many inconsistencies in the “story” and far too much “leading” by the media and powers that be..............
I may be wrong, but I do not believe this guy acted alone...not for ONE moment!
This guy did it himself ~ all by himself ~