WASHINGTON (AP) - The streets around the Washington Navy Yard, the scene of yesterday's shootings that left a gunman and 12 others dead, have been reopened today.
Access to the Navy Yard is being limited to mission-essential personnel.
In addition to the 12 who died, eight others were wounded. All of them are expected to survive.
Authorities continue to learn more about the gunman -- a defense contract employee and former Navy reservist who used a valid pass to get onto the installation and started firing inside a building. He was eventually killed in a gun battle with police.
Law enforcement officials say Aaron Alexis had been suffering from a host of serious mental issues, including paranoia and a sleep disorder. They say he had also been hearing voices in his head. They say he'd been treated since August by the Veterans Administration for his mental problems. But the Navy hadn't declared him mentally unfit, which would have rescinded a security clearance he had from his earlier time in the Navy Reserves.
According to two federal law enforcement officials, Alexis carried three weapons: an AR-15 assault rifle, a shotgun, and a handgun he took from a police officer at the scene. The AR-15 is the same type of rifle that was used in last year's mass shooting at a Connecticut elementary school. It was also used in the shooting at a Colorado movie theater that killed 12 people.