Update 1:02 p.m. New FBI Director Jim Comey said the man who went on a rampage at the Washington Navy Yard on Monday was "wandering around looking for people to shoot" and had no apparent rhyme or reason for killing 12 people.
In his first remarks to reporters since taking office this month, Comey said the gunman, Aaron Alexis, ran out of ammunition for his legally purchased sawed-off shotgun, exhausting a supply in his cargo pants pocket, and then began using a Beretta wrestled from a guard he had shot.
A little more than half an hour after the shooting began, the FBI director said, law enforcement tactical teams pinned down Alexis before he died in a "sustained exchange" of gunfire. Alexis had been working on a "server refresh project" as a contractor that gave him access throughout Building 197 on the Navy Yard complex in southeast D.C.
Comey declined to address what if anything federal agents and profilers had learned to date about Alexis through his writings and electronic presence. The gunman apparently said nothing of use to investigators during his rampage, but authorities continue to try to "understand his life up to the moment of that shooting."
The FBI director declined to address whether the incident signaled a need for changes in gun laws or security-clearance procedures, saying Defense Secretary Chuck Hagel had launched a security review.
Comey said his biggest challenge is figuring out how to cut nearly $800 million from his budget because of sequestration — a big task given that the bureau spends 60 percent of its money on personnel. Furloughs of up to 10 days starting Oct. 1 are under review, and the FBI Academy in Quantico, Va., stopped training new classes of agents and analysts six weeks ago, he said.
"The couch has been turned upside down" and there is no more change left in the cushions, Comey said. "I'm just not sure people understand the impact of that on an institution like the FBI."
Responding to reports in NPR and elsewhere that agents don't have enough money to gas their cars, he said, "My reaction to that is ... I don't want to tell you what my reaction to that is."
The director said he's broadly comfortable with "useful" but controversial surveillance that authorities used to gather bulk phone records, noting that in his view, there are sufficient checks and balances but that he welcomes the ongoing privacy debate.
Leaks by former NSA contractor Edward Snowden that revealed details of the government programs, Comey said, are "a very big deal."
He added that finding and bringing to justice the culprits for last year's attack on the U.S. Consulate in Benghazi, Libya, that killed four Americans including Ambassador Chris Stevens, remains a high priority for him and the FBI.
Previously: Investigators have been focusing on the erratic behavior of a former Navy reservist who law enforcement officials say was grappling with paranoia and had reported hearing voices and being followed before he gunned down 12 people at the Washington Navy Yard this week.
The Department of Veterans Affairs said Wednesday that 34-year-old Aaron Alexis visited two hospitals in the weeks before the Monday morning rampage but denied that he was depressed or having thoughts of harming himself or others.
Alexis, who died in a police shootout after the rampage, complained of insomnia during an Aug. 23 emergency room visit to the VA Medical Center in Providence, R.I. He was given sleep medication and advised to follow up with a doctor. He made a similar visit five days later to the VA hospital in Washington, when he again complained of not being able to sleep because of his work schedule. His medication was refilled.
Alexis appeared "alert and oriented" during the visits and denied feeling depressed or anxious or wanting to do harm, the VA said in a statement presented to lawmakers Wednesday.
Two weeks before his ER visit, for instance, he complained to police in Rhode Island that people were talking to him through the walls and ceilings of his hotel room and sending microwave vibrations into his body to deprive him of sleep.Navy officials said the Newport police reported the incident to officers at the base security office, but nothing more was done about it because he did not appear to be a threat to himself or anyone else at the time.
Despite the apparent concerns over his mental health and past run-ins with the law, Alexis maintained his security clearance as he arrived in Washington in late August for a job as an information technology employee at a defense-related computer company.
Alexis had been a full-time Navy reservist from 2007 to early 2011, and a Navy spokesman said his security clearance, at the "secret level," was good for 10 years from when he got it.
On Monday morning, he used a valid badge to gain access to the sprawling Navy Yard and Building 197, bringing with him a sawed-off shotgun on which the cryptic messages of "better off this way" and "my ELF weapon" were scrawled, according to a law enforcement document reviewed by The Associated Press. The meaning of those words wasn't immediately clear.
The motive of the shooting also remains unclear, though investigators have focused on Alexis's mental health and alarming behavior displayed in the weeks before the massacre.
Alexis had enrolled in VA health care in February 2011, and received monthly disability payments of $395 for orthopedic problems and ringing in his ears, according to the VA. He never sought an appointment from a mental health specialist and either canceled or failed to show up for primary care appointments he had scheduled at VA hospitals, the department said.
Meanwhile, Alexis's mother said Wednesday she does not know why her son opened fire on office workers and police. Cathleen Alexis read a brief statement inside her New York home, her voice shaking. She did not take questions from a reporter.
"Aaron is now in a place where he can no longer do harm to anyone, and for that I am glad," Cathleen Alexis said. "To the families of the victims, I am so so very sorry that this has happened. My heart is broken."
Alexis had with him during the massacre a handgun he picked up inside the building and a legally obtained Remington 870 Express shotgun.
That firearm would not be covered under a proposed weapons ban supported by the White House. The ban was introduced in the Senate earlier this year and would prohibit 157 specific firearms designed for military and law enforcement use, and it would exempt more than 2,200 others.
The rampage and shootout spanned more than 30 minutes. One District of Columbia police officer was shot and wounded in the legs but survived. The U.S. Capitol Police, which protects members of Congress and Congressional buildings, announced Wednesday that it has ordered an investigation into the force's response. The fact review team is expected to look into reports that one of the force's tactical response teams arrived within minutes of the shootings and was told by a Capitol Police supervisor to stand down. The Navy Yard is less than three miles from the Capitol complex.
Senate Sergeant at Arms Terrance Gainer said in an email that if the reports are accurate, "It would be an unbearable failure. The Police Board will conduct a review of all facts related to our response."
The shooting also raised questions about the adequacy of background checks for government contractors who have access to sensitive information. Defense Secretary Chuck Hagel has also ordered two sweeping reviews of military security and employee screening programs, acknowledging Wednesday that "a lot of red flags" may have been missed in the background of the Washington Navy Yard shooter.
"Obviously, there were a lot of red flags," Hagel told reporters at a Pentagon briefing. "Why they didn't get picked, why they didn't get incorporated into the clearance process, what he was doing — those are all legitimate questions that we're going to be dealing with."
Navy Secretary Ray Mabus, meanwhile, announced Wednesday night that he wants three rapid reviews completed by Oct. 1, including whether a contracting company should inform the Navy if it decides to review a worker's security clearance.
That order raises questions about whether the company that employed Alexis, the Florida-based IT consulting firm The Experts, had decided to review his clearance. A security clearance often is critical for contractors working in defense jobs.
The Navy Yard, located in southeast Washington, reopened and returned to mostly normal operations Thursday, although Building 197 and the gym, which is being used as a staging area for the FBI, remained closed. President Barack Obama and first lady Michelle Obama are expected to attend a memorial service for the shooting victims Sunday.