School Shooter was on high dose of Prozac

"On Friday, as Tammy Lussier prepared to bury Weise, the nephew whom she lived with, and her father, who was among those killed, she found herself looking back over the last year, she said, when Weise began taking Prozac, the antidepressant, after a suicide attempt she described as a “cry for help.”

“They kept upping the dose for him, and by the end, he was taking three of the 20 milligram pills a day,” she said. “I can't help but think it was too much, that it must have set him off.”