Early on we know that Arron Alexis [View all]

had two shooting incidents in his history, one in Fort Worth and one in Seattle. In 2004 he shot the tires of cars parked on his street. In 2010 he fired a shot through his apartment's ceiling into the apartment of a woman he had complained about playing music too loud.

He had been discharged from the Navy Reserves under less than Honorable conditions for a "pattern of misconduct". He being treated for psychological issues.

With all this he was able to pass a background check, buy a gun from a gun store and get a concealed carry permit.

What is wrong with this system?