How did he get the gun?
Why didn't the FBI act when warned?
Why did the DOD not flag Kelly, the Texas Church shooter as being not eligible to own a firearm?
Why were neighbors of Farook and Malik in San Bernadino afraid to report suspicious behavior they witnessed prior to that shooting?
Why didn't anyone take the parents of Eliot Rogers seriously when they reported to authorities their kid was gonna go off?
More laws will not stop this if we've already seen those in place will not be properly acted upon.