We need to enforce the laws we already have and stop worrying about who gets offended by it . Everything that lunatic used was illegal and he shouldn't have been able to get those weapons . STOP HINDERING LAW ENFORCEMENT WITH POLITICALLY CORRECT B.S. !

There's a bunch of mixed reports. He used a semi auto ar15 with a slidefire

I thought he might have used an illegally converted AR too. However, he could have used a legally converted "bump fire" or "slide fire" style AR.
I don't know for sure, have the authorities released that information or are you assuming?
Bump fire conversion for AR-15 https://www.youtube.com/watch?v=_U6tORrODJE&feature=share

They released the pictures.

I saw some news articles and posts about the shooter having some "bump fire stocks" but what I read wasn't clear that was what he used. I'm just waiting for a definitive statement from the LVMPD or the feds.

The fool had explosive devices in his house , where did he get them , 7-11 !?!