know. a colleague of his saw him brushing his teeth in the bathroom at work earlier that morning. they exchanged small talk and pleasantries. there were no signs of trouble. as for how you prevent the next one the president's acting chief of staff mick mulvaney was asked and he touted the trump administration's record saying they have beefed up the background check database and banned bump stocks. he made clear that the government cannot solve this problem entirely. listen. >> there are things the government can do and there are things this government is doing, but we are never going to protect everybody against everybody who is deranged, insane. you have laws on the book that make murder illegal yet people still do it. >> reporter: authorities said of the two handguns found at the scene, one had a silencer or suppressor attached. it is not clear what role, if any, the silencer had on the outcome of the shooting. the president was asked about it