I was just trying to understand why this is important to you as I don't know what point you are trying to prove. If I start the answer can you finish it?
An unstable man dressed in combat gear armed with a legally owned assualt rifle shot and killed 17 people in a Florida school. This was despite warnings about his mental state to government agencies and the failings of first responders of a police force with a sherriff previously photographed with Hillary Clinton and other Democrats. Therefore.......