The problem seems to be the meds, they don’t take their meds. Like that “I can’t get a girlfriend” shooter Elliot Rogers, they prescribed him an anti-psychotic and being that he had an almost Obama-like ego - well maybe 0.0000000000000000000000001% the ego Obama has which is still pretty huge, he refused to take it because he felt it made him less than perfect. But you know, how do you force someone to take medication, especially if they haven’t acted out in any dangerous way?
A problem is in the assumption that their "meds" make them normal. They permit them to PASS for normal, until they have a violent episode.