CARROLLTON, Ga. (AP) — Police are trying to learn why a 13-year-old boy was shot to death in his bedroom in west Georgia.

Police say witnesses heard gunfire between 1 a.m. and 3 a.m. Sunday. They said relatives later discovered Nizzear Rodriguez with gunshot wounds when they awoke and called 911. Police say relatives were trying to take the boy to a hospital when officers arrived, but it was too late to save him.

WSB-TV reports (http://bit.ly/1l6ucXU ) that Nizzear was an eighth-grader at Carrollton Junior High School. Police say the school planned to have grief counselors on the campus Monday morning.

Police have not named any suspects. Detectives say they are interviewing witnesses and following up on several leads.

Carrollton is about 45 miles west of Atlanta.

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Information from: WSB-TV, http://www.wsbtv.com/index.html