A "mental health problem" sez the Prez who never knew the guy or his circumstances. Maybe he was just having a bad day. We may never know.  

Over a month ago, a gunman wiped out the lives of dozens in Las Vegas.  Last night, CNN reported, 
"[Sheriff Joseph] Lombardo said ... that he did not know whether money troubles led to the shooting. He reiterated that the motive remains elusive. "What is the reason why?" he asked rhetorically at one point. "We haven't gotten that answer yet. There was something that popped his trigger or caused him to go into that direction and we have yet to determine what that is," Lombardo added. "I hope we find something in the pathology of his brain that helps us understand this."

We may never know for sure. But one thing's for sure: at this point Nevada law enforcement ISN'T talking "mental health problem" because maybe the guy just...didn't...have one.  But he did have access to guns.  Lots and lots of guns. 4,000 rounds of ammo, too. And THAT's a fact.