A 19-year-old man who police believe stabbed and killed a woman he met through a personal ad on Craigslist pleaded not guilty in court Tuesday.

David Sparre is accused of killing 21-year-old Tiara Poole in her Hodges Boulevard apartment. Poole was found dead on July 12.

Sparre, of Georgia, was identified as a suspect after a search of Poole's telephone and computer records, police said.

He was located last month by the U.S. Marshals Service at a relative's house in South Carolina.

Police said the two communicated online and by phone for a few days, then he drove to Jacksonville to meet her on July 8. Investigators believe the two drove to her apartment together, which is where she was stabbed multiple times.

Police said Sparre left the apartment complex in her car, which was found abandoned near where the two had met earlier in the day.

According to police, Sparre admitted to killing Pool, but did not say why.

Prosecutors said they will seek the death penalty if Sparre is convicted.