That's the score. Mass shootings after common internet social interaction (1998-ish) vs before.
I don't count muslim murder because that's a completely separate dynamic.
http://timelines.latimes.com/deadliest-shooting-rampages/
The social interaction started with Facebook in 2004 and twitter 2006, not the late 90's.
More Ritalin was given out in the late 90's, which was the 1st one in a Colorado
School, Columbine.