Quantico, VA - Three Marines are dead after shooting at Marine Base Quantico in Virginia.
Officials there say a suspect who killed two people was found dead from an apparent suicide.
The base was on lockdown for most of Thursday night after the call came in about a fatal shooting.
Authorities were in a standoff with a man who had barricaded himself inside the barracks.
Once they finally went inside, they found him dead with another victim.
According to investigators, the suspect is believed to be a staff member at the officer candidate school at the base.
They say the two others killed were also Marines.