You have kids smoking pot at 9 and 10 years now. And it's not the pot that existed 20 or 30 years ago. This is hybrid stuff. You also have teens taking drugs that contain weird psychotropic cocktails.
What we now have is a situation where kids are getting dosed with odd concoctions from before they are born...does this make for school shooters? Maybe. And when you say that you didn't have kids shooting up the school, I'll bet your school -- like the vast majority -- had a couple kids who showed sociopathic behavior, such as killing small animals or random acts of viciousness.
Ritalin is a derivitive of cocaine and prozak is a mind altering drug. It's almost like they want this kind of stuff to happen. It's a braindead policy to put kids on powerful drugs to perk them up or keep them alert. If anything they should be given downers to take the spunk out of them. 2+2, before drugs were handed out, no shootings, after drugs are handed out, one every few years. We are totally destroying society, it's amazing how differnet things are from 30 years ago.