Just because something is getting labeled MK Ultra FF doesn't mean, they don't use these kind of drugs. Also, just because 10k on these meds don't do anything doesn't exclude the possibility, that in certain cases the people do run amok. So yes, it should be looked into it, but with an open eye. Which other factors are in play? For example age? It seems most of the shooters are pretty young. Are they more perceptive to certain influences? Also what about another drugs than Zoloft or Prozac? Aderol? Very common for treatment of overactive (hyperactive) kids and/or attention deficit syndrome. Simplified a legal version of meth. 30 years ago we didn't have these mass shootings, but also we didn't have so many meds circulating/being prescribed. To say it's not the meds is too easy.