Police said it happened after 1 p.m. in front of Building 37.
Officers arrived to find a body with gunshot wounds.
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Anyone with information is asked to call Investigator Brinkley at (919) 560-4440, ext. 29322 or CrimeStoppers at (919) 683-1200. CrimeStoppers pays cash rewards for information leading to arrests in felony cases and callers never have to identify themselves.