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WASHINGTON (WUSA9) -- Aaron Alexis, 34, of Fort Worth, Texas, is believed to be the lone shooter in the Navy Yard shooting. D.C. Police said late Monday they have exhausted all means to eliminate the last possible suspect. D.C. Police Chief Cathy Lanier said in a press briefing, "We feel comfortable we have the single sole person" responsible for the loss of life. Alexis was killed in a shootout with D.C. police.

MPD Chief Lanier says teams arrived at the building within seven minutes. Officers heard gunshots immediately and they made entry. She says that officers from multiple agencies made multiple engagements with the suspect before he was taken down.

Chief Lanier also said that the decision to "shelter in place" was the most prudent decision at the time. "We aired on the side of caution."

Authorities are still trying to determine his motive for the shooting. The FBI's Behavioral Analysis Unit is assisting to determine motive. The FBI is asking for the public's assistance with any information regarding Alexis. Officials ask anyone with information concerning Alexis, to call the FBI's Washington, DC Field Office at 202-278-2000 or 1-800-CALL-FBI. The FBI says hundreds of tips have come in and no amount of information is too small.

Alexis arrived in the D.C. area on or about Aug 25 and stayed in local hotels since that time.An FBI Washington Field Office spokesperson said agents conducted an investigation at a Residence Inn in Southwest D.C. late Monday night that was related to the shooter. Alexis was registered there. The hotel is a couple of miles away from Navy Yard. Tuesday morning, the hotel flags were at half staff and the televisions inside were tuned to news recapping Monday's events. FBI officials and police won't say how long Alexis was staying or what kind of evidence, if any, was taken from the hotel. CBS News reports that Alexis was sharing a room with other contractors.

A federal official has confirmed that a Prius that Aaron Alexis was driving was towed out of the Navy Yard on Tuesday morning, reports CBS NEWS.

A federal law enforcement official said that the shotgun used by Alexis was traced to a gun store in Lorton, Virginia. The official said the shotgun was purchased at the store within the last week. In a news conference, officials said Alexis is believed to have walked into the Navy Yard with only the shotgun. The handguns were reportedly taken during the shooting spree. He did not have an AR-15.

SHOOTER WORKED AS SUBCONTRACTOR FOR HP

A Hewlett-Packard Company spokesman confirmed that Alexis worked for a company called "The Experts," a subcontractor to HP.

"We are deeply saddened by today's tragic events at the Washington Navy Yard. Our thoughts and sympathies are with all those who have been affected." The job of the company is to refresh equipment used on the Navy Marine Corps Intranet network. "HP is cooperating fully with law enforcement as requested," said Michael Thacker Director of Corporate Media Relations at HP.

VICTIMS IDENTIFIED

D.C. policereleased the names of the 12 victims in ashooting at the Naval Sea Systems Command Headquarters building (Bldg. 197) in Washington Navy Yard on Monday morning.

According to police, they are:

  • Michael Arnold, 59
  • Sylvia Frasier, 53
  • Kathy Gaarde, 62
  • John Roger Johnson, 73
  • Frank Kohler, 50
  • Kenneth Bernard Proctor, 46
  • Vishnu Pandit, 61
  • Arthur Daniels, 51,of Southeast, Washington, DC
  • Mary Francis Knight, 51,of Reston, Virginia
  • Gerald L. Read, 58,of Alexandria, Virginia
  • Martin Bodrog, 54,of Annandale, Virginia
  • Richard Michael Ridgell, 52,of Westminster, Maryland

Eight people were injured in the shooting.Three people were shot, including Officer Scott Williams. The remaining five people suffered relatively minor injuries.

Monday, the chief of trauma at GW Hospital said the first victim brought in was a man in his sixties. He had a gun shot wound to the head and he was pronounced dead at hospital, says the official. A Washington Hospital Center official says staff treated one female victim shot in head and another female victim shot in the shoulder.

Tuesday morning, MedStar Washington Hospital Center officials gave an update on three patients injured in Monday's Navy Yard shootings.

Hospital officials say the patients are "doing well."

As of 7:30 a.m. Tuesday,the Metropolitan Police Department officer with gunshot wounds to the leg was listed in fair condition. A woman with gunshot wounds to the shoulder was also in fair condition, say officials. Another woman suffered gunshot wounds to the head and hand. She is in good condition, say officials.

DETAILS ABOUT NAVAL SEA SYSTEMS COMMAND

According to the Associated Press, the Naval Sea Systems Command is the largest of the Navy's five system commands. It builds, buys and maintains the Navy's ships and submarines and their combat systems. The U.S. Navy says approximately 3,000 people work at the building. People inside the building were told to shelter in place. A witness in the area says police took people who were still outside to Nationals Park.


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