No permit's required to carry in AZ. The only ball that got dropped was his family not noticing that he was mentally ill, or the people at his college pointing it out in a more forceful manner. It's already been stated that he has had interaction with the local sheriff in the past. They also dropped the ball. NICS worked the way it was supposed to. So did the gun store.They guy was kicked out by the military, kicked out of college for being a lunitic. So why was he allowed a gun permit.
If all of our current powers did not stop this, then why is another law going to help?
The sheriff should have denied his permit.