Just browsed notables & didn't see this. Apologies if already posted. It points out the fact that Bill Cooper called the school shootings to push gun control. If anything it's an article backing up some of what we have uncovered here.

http:// www.wakingtimes.com/2018/04/18/a-1991-book-predicted-the-connection-between-mass-shootings-and-public-demand-for-gun-control/