The accident happened on US301 South near Rainbow Lane. Jose Hernandez Galindo, of Smithfield, was spotted lying in a ditch by a passing motorist around 9:50 a.m. Saturday.
He was pronounced dead at the scene by EMS workers.
Investigators said they think he was hit sometime after 1 a.m. - possibly by a 1996-2002 Chevrolet Express Van or a GMC Savannah Van.
The vehicle lost its driver side mirror in the impact and may also have front-end damage on the same side.
Anyone with information please contact the Smithfield Police Department at (919) 934-2121 or Detective C.M. Blinson at (919) 989-1064. If a caller wishes to remain anonymous, then contact the Smithfield Tip Line at (919) 989-8835.
With information from Mickey Lamm/WTSB Radio