That first link he gave, and his incorrect interpretation of what it meant, might be the funniest thing I've ever read on this board. He thought the study was saying depressed kids were doing more mass shootings, but the study was really saying children who survive and are exposed to mass shootings are more depressed than normal. I laughed for about 10 minutes straight.
There has been some research that suggests that younger people, 16-35, may be prone to violent aggression when on those medications. It’s not unreasonable to investigate whether the medications may be inappropriate for some people in that age range. Saying the issue is resolved is probably premature and not wise.