Navy Base Shooter 'Arrested Over Guns Before'
Despite previous run-ins with the law, the gunman had access to a highly secure US Navy base where he went on a deadly rampage. 9:16am UK, Tuesday 17 September 2013. Aaron Alexis. Video: Aaron Alexis was killed in a shoot-out with police. Enlarge.
Washington Navy massacre: 13 dead – and gunman had security clearance …
Thirteen people dead after gun rampage at Washington naval yard
From Newtown to Navy Yard, unpredictable calamities upend Obama's second …