Police identified the victim as David Parker, 17. His last known address is in Currituck County.
Police said Brenda Young and her mother, Helen, both of Clayton, were in the car that struck Parker around 5:30 a.m.
"They didn't have any life-threatening injuries, but they were obviously and understandably shaken up" said Capt. D.A. Inman of the Raleigh Police Department.
Parker was not carrying identification, according to police.
"Sometimes you are able to give the identity by the use of fingerprints. Of course, we're trying that and one of the last things we do would be to publish the information and see if it develops any calls that might come in," Inman said.
Brenda Young was treated and released from WakeMed. Her mother was not admitted to the hospital.
Police said charges are not likely.
Two inside lanes of Interstate 440 near Rock Quarry Rd. were closed through the morning rush as police investigated the accident scene.
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