That meme going around: what do all these shootings have in common?
Shows an army gun, but my bet's: "all were known suspects being investigated or had direct contact with the FBI" and even if wrong I'd be more than half right.
If the shooter was already under federal investigation for threatening to do what he did... What does investigation look like?
A manila file folder on a walnut desk?
Following the kid to a gun store?
Watching him day of crime?
You gotta ask these things.