dcblogs writes: The man police suspected of a mass shooting Monday at the Washington Navy Yard was employed by an IT subcontractor working on a government network project. He got that job despite having an arrest record for gun violence. Aaron Alexis, 34, who was killed by police, was upgrading the Navy and Marine Corp.'s network. He was working for a Fort Lauderdale, Florida-based firm, The Experts, a subcontractor for Hewlett-Packard. In June, HP announced that it has been awarded a $3.45 billion project to build the Navy's "Next Generation Enterprise Network," or NGEN. Because Alexis was employed on a military IT project, he almost certainly needed a security clearance with a background investigation. He got that clearance despite two arrests for recklessly shooting a gun. In 2004, Alexis was arrested in Seattle for shooting out the tires of another man's vehicle in what Alexis later described to detectives as an anger-fueled "blackout." He was arrested in 2010 after shooting a gun in his apartment. The bullet went into the apartment of a neighbor he had a dispute with. The neighbor told police that "she is terrified of Aaron and feels that this was done intentionally." .