thoughts every time. and you wonder why these keep happening. now, we know that he was armed with a glock.45 caliber handgun that was purchased legally, but it had an illegal extended magazine in there. of course, you know, there are also the possibilities of mental illness here. the sheriffs deputies were called to his house in april last year. he was described as being irate. he was assessed by mental health professionals who did not decide to detain him. the sheriff mentioned that ptsd was a consideration there. he of course served a term in afghanistan back in 2010/2011. but many experts say that ptsd does not necessarily or does not at all lead to this kind of violence. no motive so far. the fbi is still trying to figure that out but they believe he acted alone. enough about the shooter.