The man is described as an African American with a slender build, standing 5' 8 to 9" tall.
Officials say he was wearing a blue or gray hooded jacket, dark-colored pants and Timberland boots. A mask was covering the man's face.
Anyone with information that might assist the investigation is asked to call the Raleigh Police Department's Detective Division at (919) 996-3555 or Raleigh CrimeStoppers at (919) 834-HELP. CrimeStoppers pays cash rewards for anonymous tips that help solve cases.