Police investigating the slaying of the University of North Carolina's student body president may have a break in the case, a prosecutor said Wednesday.

Investigators are talking to a person of interest in the death of 22-year-old Eve Carson, Orange County District Attorney Jim Woodall told several media outlets. His office declined to comment when reached by The Associated Press.

Woodall's comment followed an overnight raid in Durham. WTVD-TV broadcast video Wednesday of the arrest of a man who the station said was later turned over to Chapel Hill police.

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Chapel Hill Police Chief Brian Curran would not confirm the reports, but told the News & Observer of Raleigh that a news conference was planned for later Wednesday.

There was no immediate response to numerous calls by The Associated Press seeking comment from police in Chapel Hill and Durham.

Carson, of Athens, Ga., was found last Wednesday on a street about a mile from the UNC campus. She had been shot several times, including once in the right temple.

Police have focused their investigation on a search for the person pictured in several surveillance photos using Carson's ATM card. The photos show the suspect both inside a convenience store and driving a sport utility vehicle that may be Carson's Toyota Highlander.

Curran has declined to say when the surveillance photos were taken or the exact location of the ATM machine and convenience store, but he said Monday that the same ATM card was used when all four photos were taken. He would not say if any money was successfully withdrawn from Carson's account.

The Board of Trustees at the University of North Carolina offered a $25,000 reward for information leading to an arrest in her death, and police received hundreds of tips after the first two photos were released over the weekend.

Carson was a senior biology and political science major at North Carolina, where she was a prestigious Morehead-Cain scholar. Thousands of people gathered last Thursday at two campus memorial services, and hundreds of mourners in her hometown filled the First United Methodist Church at a memorial service Sunday.