ADDS FIRST NAME AND RANK OF BASE SPOKESMAN - This image provided by the U.S. Marine Corps shows snow covering one of Marine Corps Base Quantico's many signs Wednesday March 6, 2013. Three people, including the suspect, were killed in a shooting at Marine Base Quantico, a base spokesman said early Friday March 22, 2013. Lt. Agustin Solivan said they believe the suspect, whose name wasn't released, is a staff member at the officer candidate school at the base. No information on the victim was immediately released. (AP Photo/US Marine Corps, Cpl. Antwaun L. Jefferson)
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