Trump shot?

[FlyingClayDisk]

Would a  random 20-year-old does arrive at the location hours in advance to scout the event, find the perfect vantage point on a nearby roof that avoids Trump's security, rig his car with explosives to create a distraction for escape, have no online search history on bomb-making, leave no manifestos or digital footprint related to the shooting, and have an alibi ready for being at a shooting range before the event. Is the level of planning involved is too sophisticated for an autistic, isolated individual?

This seems like a more than reasonable question. 

Unfortunately, I'm not sure I am qualified to answer it.  Sorry.