3 Marines dead, including suspect, in Quantico shooting Updated 3:40 a.m. A base spokesman says the suspect in a shooting at Marine Base Quantico in Virginia has been found dead of a self-inflicted gunshot wound along with a second victim. Lt. Agustin Solivan says authorities entered the barracks early Friday where the suspect had barricaded himself after a fatal shooting and found him dead along with another victim. The standoff began after a shooting on the base around 11 p.m. No names have been released, but Solivan said authorities believe the suspect was a staff member at the officer candidate school at the base. Solivan says the two others killed were also Marines. The base had been put on lockdown but the lockdown has been lifted.