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 But the Navy hadn't declared him mentally unfit, which would have rescinded a security clearance he had from his earlier time in the Navy Reserves.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.
The Senate is returning to normal operations Tuesday following a shutdown due to the Navy Yard shootings.
Terrence Gainer, the Senate sergeant at arms, had restricted people from leaving or entering Senate buildings for part of the day Monday as authorities were searching for other potential shooters. Late Monday, however, authorities said they believed the gunman operated alone. Thirteen people, including the gunman, died in the shooting at the Navy Yard, about a mile south of the Capitol.
Gainer said that while operations are returning to normal, the U.S. Capitol Police will maintain a high level of security at the Capitol complex.
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