Washington Navy Yard shooter Aaron Alexis heard voices

Aaron Alexis was approved to buy a gun and hold a secret security clearance despite mental problems and a questionable military record. Six weeks ago, Aaron Alexis told people someone had threatened him at an airport in Virginia. A few days later, in Rhode Island, he heard voices. He thought people were speaking to him through "the walls, floor and ceiling" of the Navy base there, where he was working. In his hotel room, the voices used "some sort of microwave machine" to send vibrations through the ceiling and into his body, a police report shows him saying. He could not sleep. Alexis frequently moved as part of his contract work at military installations from New England to North Carolina; he arrived in Washington on Aug. 25. He switched hotels several times until Sept. 7, when he finally settled into the Residence Inn — a mile from his new workplace at the historic Washington Navy Yard on the capital's waterfront. READ MORE HERE: http://www.latimes.com/nation/la-na-navy-shooting-20130918,0,6823722.story