as cowmeat says this has nothing to do with gun laws whatsoever
it has somewhat to do with the unfortunate fact that the FBI should have kept more of an eye on this guy and his family
i truly believe that if monitoring was done properly, or more thoroughly, this might not have happened
sure he could still get guns if he wanted, but the real problem was the huge amount of ammunition this guy was packing along side a very powerful weapon
if this guy was flagged, he should've had his rights to guns revoked
once again he could've gotten a gun, but it would've had to have been something smaller and with maybe less ammunition, which might not have given him an idea to attack such a large number or anyone in the first place
the only way to fight outliers like this situation is for gun control to be more heavily on those with mental problems, terror relations and other extremists