A week after a former Navy reservist gunned down 12 workers at the Washington Navy Yard, officials said the background report given to the Navy failed to reveal that he had shot out the tires of another person's car during a 2004 dispute in Seattle. Instead, the report said Aaron Alexis "deflated" the tires, and did not mention the use of a gun.
Defense officials have acknowledged that a lot of red flags were missed in Alexis' background, allowing him to maintain a secret security clearance and work as a Navy contractor despite a string of police and behavioral problems.
http://accesswdun.com/article/2013/9/265907