Navy Orders Security Review Following Shootings

Want to figure out how Aaron Alexis got clearance

The U.S. Navy on Tuesday ordered a review of security at all of its facilities as questions arose about how a former serviceman with a history of violence and mental illness received clearance to work at a base where he killed 12 people before police shot him dead.

The suspect, Aaron Alexis, 34, a Navy contractor from Fort Worth, Texas, entered Washington Navy Yard on Monday morning and opened fire, spreading panic at the base just a mile and a half from the U.S. Capitol and three miles from the White House.

Alexis' employer said he worked in at least six installations in July and August without incident. Alexis was employed by a company called The Experts, a subcontractor for Hewlett-Packard that serviced computer equipment, the company said.