The presence of behavioral medication is always present in suicides and these mass killings. No getting away from that fact. Golly, America should look into all these goo-goo pills that are being prescribed to our youth. Sure didn't happen when I was a kid. We're reaping a bitter harvest from decades of prescription behavioral drugs. Every one of these lunatic murderous fiends was prescribed them. I contend it made them worse, right?
I know that very few kids in my elementary school were on behavioral medication including one good friend of mine named Todd, a son of PhD academics. He was mentally brilliant but an overemotional basketcase always on the verge of losing his composure over the simplest little challenges -- like being unable to unlock a backyard gate. Sucked his thumb until he was 14, at least. We all still liked him anyway.
We grew up, he didn't. Todd became a complete liberal-assed gaywad who was into recreational drugs, last time I saw him years ago. I'm pretty sure he'd have killed himself long ago if he had any guts whatsoever.