By Daily Mail Reporter PUBLISHED: 00:05 EST, 24 March 2013 | UPDATED: 02:47 EST, 24 March 2013 A Marine who shot two of his colleagues to death before killing himself amid a suspected love triangle at their barracks in northern Virginia on Thursday night has been identified. Military officials say Sgt Eusebio Lopez, a 25-year-old tactics instructor at a school that tests Marines wanting to become officers, is responsible for the shooting that took the lives of two fellow Marines. Lopez gunned down 19-year-old Lance Cpl. Sara Castromata just after taking the life of Cpl. Jacob Wooley, 23, at the Marine Corps Base Quantico in northern Virginia according to officials on Saturday.
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Sgt. Eusebio Lopez, 25, identified as gunman at the Marine Corps Base Quantico in northern Virginia on Thursday night
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Victims: Lance Cpl. Sara Castromata, 19, and Cpl. Jacob Wooley, 23
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Lopez's Facebook page suggested signs of emotional distress in days leading up
Lopez was an instructor at officer candidates school, known for its grueling 10-week program that evaluates @placeholder on physical stamina, intelligence and leadership.