SAN FRANCISCO (CBS SF) — Two Marines involved in a shooting at the Marine Corps Base Quantico in Virginia on Thursday have been identified as Bay Area residents, according to the U.S. Marine Corps.

The alleged shooter, Sgt. Eusebio Lopez, 25, was a Pacifica resident, according to a statement released Saturday by Col. David W. Maxwell, the base commander.

Lopez was a tactics instructor at the Officer Candidates School and a machine-gunner. He joined the Marine Corps in May 2006 and has deployed in both Iraq and Afghanistan.

Lopez is alleged to have shot and killed Lance Cpl. Sara Castromata, a 19-year-old resident of Oakley, and Corporal Jacob Wooley, 23, of Guntown, Mass.

The shooting occurred around 10:30 p.m. in Taylor Hall, a barracks at Officer Candidate School, Maxwell said. Lopez is believed to have shot and killed Castromata and Wooley, and then killed himself with a self-inflicted gun wound.

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