Robert Crimo Jr. sees nothing out of the ordinary in his son's behavior. Dropping out of school at sixteen, watching violent online content, creating rap videos filled with dark imagery - he reads it all as normal teenage rebellion. The fact that police were once called to his ex wife's house after a threat to "kill the entire family" never reaches him... he says he wishes he had known. Instead, he helps his eighteen-year-old son buy a gun, unaware of the devastation it will one day cause: seven dead, forty eight wounded. He insists this could happen to anyone.