While the group was arguing, police say Mangum was leaning into the passenger side of Price's vehicle when it moved forward, dragging Mangum a few feet before she fell and was run over. Price then fled the scene.
The incident happened around 2:45 a.m. on Hodges Street near Wake Forest Road.
"I think they were about to fight and the girl just sped off real fast and she was still hanging on," said an eyewitness in a call to a 911 operator. "And, they were just driving real fast and she fell and there's blood on the street. I know she's dead."
"Somebody just picked her up and took her and they say they're taking her to the hospital, but I know she's dead," the eyewitness said. "She's dead. She's not breathing."
Mangum was taken to Duke Raleigh Hospital by another vehicle that was near the scene. She died from her injuries at the hospital.
Investigators found Price and her SUV Sunday morning at her north Raleigh townhome. Officers collected blood and bloody finger prints from the SUV. Price is currently charged with felony hit-and-run.
Price faced a judge Monday morning, but is out of jail on a $50,000 secured bond.
Mangum's family says the incident is murder.
In an e-mail to Eyewitness News a woman identifying herself as Mangum's cousin said, "Price was released from jail and laughed in our family's face outside of court. This is not right and something needs to be done in this legal system. None of the friends of Price who were in the car were arrested and they are just as involved as Price was. This was a murder not a hit and run."
Police are still interviewing witnesses and trying to find out if more people should be charged and whether Price's charges should be upgraded.