Initial confusion over the suspected Navy Yard shooter

WASHINGTON, DC - SEPTEMBER 16: Armed ATF agents stage on the 11th Street Bridge adjacent to the Navy Yard complex where a shooting took place early this morning September 16, 2013 in Washington, DC. Early reports indicate that several people may have been shot, and police are still trying to determine the number of suspects involved in the shooting. (Photo by Win McNamee/Getty Images)
Win McNamee/Getty Images

Investigators at the scene of the Washington Navy Yard shooting on Monday morning found the military ID card of a Navy man who had worked at the Navy Yard until Friday. They believed that he was the shooter that had been taken down in a confrontation with police that morning. FBI Agents were staking out the man's home awaiting a search warrant when a car rolled into the driveway and that man was found to be the Chief Petty Officer whom they had believed was the suspect. That he was alive proved he was not the suspect.

This changes a lot. It means the identity they believed they had of the gunman is wrong. It means that the possible motive -- troubles the man was having with the Navy and with family -- is not the motive.

The shooter was subsequently identified as 34-year-old Aaron Alexis from Fort Worth, Tex., according to a U.S. official. He is a former avionics electrician with the U.S. Navy. He had been arrested at least twice previously: once in Seattle for malicious mischief, and once in Fort Worth in 2010 for discharging a firearm in public. The motive behind the attack is still unknown.

  • John Miller

    John Miller is a senior correspondent for CBS News, with extensive experience in intelligence, law enforcement and journalism, including stints in the Office of the Director of National Intelligence and the FBI.