That's the problem, crazies are crazy. If they were rational, they wouldn't be crazies.
Now imagine some guy coming off an SSRI the voices in his head told him to stop taking because they'd guide him...
Now imagine his head clearing some day and realizing what he had done...
Every major school shooting and some other noteworthy shootings have involved a shooter who was on some sort of medication.
Who is to say this guy is any different?
I'm not trying to diminish the horror of what was done, the question is one of "Why?", and if it can be prevented in the future if the meds are the problem.
Aaaaaaaaaaaaah don’t be “liberal” that makes declaring victory harder than damning it all to hell and forgetting about it.