There's a story behind every tragedy. You don't know shit. You are reactive in the most painfully lazy way. What kind of weapon(s) did he have? Was he legally licensed? Why did he apparently kill his grandmother? There is so much to sort out to try and understand why mass killings happen , from shootings to running over people at a parade. There is a major problem with these people behind their weapon of choice. Everyone is hurting over this. You don't own the sadness we all are feeling for the families.