Aaron Alexis, the 34-year-old man believed responsible for Monday's shooting rampage that killed 12 people at the Washington Navy Yard, was a former full-time Navy reservist who had obtained a concealed-carry permit in Texas and was arrested three years ago for illegally discharging a weapon.
Alexis, who was also killed on Monday, was an aviation electrician's mate third class in the U.S. Navy Reserve until January 2011, when he received a general discharge amid unspecified "misconduct issues," a Navy official tells NPR. He enlisted in May of 2007.
Authorities say that so far they have no motive for the attack, which also left a number of people injured. Witnesses at the scene of Monday's carnage at the Southeast D.C. Navy Yard described "a sense of panic" as events unfolded.
Valerie Parlave, the assistant director of the FBI's Washington field office, has urged the public to come forward with information regarding Alexis. "No piece of information is too small," she was quoted by The New York Times as saying. "We are looking to learn everything we can about his recent movements, his contacts and his associates."
The Times says three weapons — an AR-15-style assault rifle, a shotgun and a semi-automatic pistol — were found on the gunman.
Alexis was last attached to Fleet Logistics Support Squadron 46 in Fort Worth, Texas. A biography supplied by the Pentagon said he was originally from New York City.
The Navy says Alexis had been awarded the National Defense Service Medal and the Global War on Terrorism Service Medal.
The Fort Worth Star-Telegram quoted Nutpisit Suthamtewakul, owner of the Happy Bowl Thai in White Settlement, Texas, who said he'd lived with Alexis for three years. Suthamtewakul described Alexis as "my best friend" and was shocked to learn he'd been killed.
"I don't think he'd do this. He has a gun, but I don't think he's that stupid. He didn't seem aggressive to me," he told the newspaper.
The Star-Telegram said a police report filed in September 2010 detailed Alexis' arrest for discharging a firearm within a municipality:
"Police were dispatched to the Oak Hills apartments about 6:40 p.m. Sept 4, 2010, on a report that someone had fired a shot through the floor and into the ceiling of a woman's apartment, according to a Fort Worth police report.
"The woman told police she had been sitting in a chair when she heard a loud pop and saw dust.
" 'She then saw that there was a hole in her floor just a couple of feet from where she was sitting while shredding papers and a hole in the ceiling,' the report states. 'She told me that she believed someone had shot a bullet through her apartment.'
"The woman told police that Alexis, her downstairs neighbor, did not come up to check on her after the shooting.
"She said that Alexis had called police on her several times in the past for 'being loud' but that police never heard anything and therefore, no action was taken.
" 'She said that several days ago Aaron confronted her in the parking lot about making too much noise,' the report states.
"The woman told police that she was 'terrified' of Alexis and felt the shooting was done intentionally."
Police in Seattle posted documents indicating that Alexis had been arrested in 2004 for "shooting out the tires of another man's vehicle in what Alexis later described to detectives as an anger-fueled 'blackout.' "
According to the Seattle Police Department Blotter:
"Alexis also told police he was present during 'the tragic events of September 11, 2001' and described 'how those events had disturbed him.'
"Detectives later spoke with Alexis' father, who lived in New York at the time, who told police Alexis had anger management problems associated with PTSD, and that Alexis had been an active participant in rescue attempts on September 11th, 2001."
Update at 7:53 p.m. ET. Worked For HP Subcontractor:
According to Hewlett-Packard, Alexis worked for one of their subcontractors. An HP spokesperson emailed this statement to us:
"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. Aaron Alexis was an employee of a company called "The Experts," a subcontractor to an HP Enterprise Services contract to refresh equipment used on the Navy Marine Corps Intranet (NMCI) network. HP is cooperating fully with law enforcement as requested."
Update at 7:49 p.m. ET. 'Anything Other Than Weird':
NPR's Gene Demby dated one of Alexis' sisters in the early 2000s. He said he played basketball a few times with Alexis, and when Demby visited his girlfriend's house in New York, he said he always saw Alexis playing video games.
"I thought he was withdrawn," Demby said, adding that Alexis was "anti-social" and "a little awkward" but he did not seem "violent."
Demby told us Alexis was the oldest of three children. His mother worked as a nurse. She and her husband divorced, so Alexis' father was mostly absent.
"Aaron never seemed anything other than weird," Demby said.
The last time Demby had personal contact with Alexis was around 2004.
Update At 6:50 p.m. ET. Not The Kind Of Person To Do This:
Michael Ritrovato, a self-described friend of the alleged shooter, told reporters on Monday Alexis was a good shooter, but otherwise an easygoing guy.
"Aaron didn't seem like the kind of person who would do something like this," Ritrovato told member station KERA's Stella Chavez and other media gathered outside the Happy Bowl Thai restaurant.