Officials say 30-year-old Staff Sgt. Timothy Raymond McGill of Ramsey, N.J., died Saturday from wounds received by small arms fire in eastern Afghanistan.
The Defense Department hasn't announced yet whether he was one of three American troops killed Saturday by an Afghan wearing a security forces uniform.
McGill initially served as a Marine after joining the military in August 2001. He was deployed to Iraq with the Marines in 2005. He joined the Rhode Island National Guard in 2008 and qualified as an elite Special Forces soldier in 2011.
He was the sixth Rhode Island National Guard soldier killed in a combat zone since the 9/11 attacks.