Charleston County authorities on Friday identified skeletal remains found in Adams Run as those of a 22-year-old man who had been missing since last year.

Coroner Rae Wooten said dental records confirmed the bones were those of Keyone Montell Nesbitt of the Adams Run area. Investigators have not determined how he died, and Wooten would not speculate on whether foul play was involved.

A real estate agent found the bones last week next to an empty house at 8321 Old Jacksonboro Road. A neighbor said the home had been abandoned for more than a year but had been the site of drug problems in the past.

A forensic anthropologist helped the coroner's office identify race, height and an age range for the remains, Wooten said. That information matched a missing person's report for Nesbitt, a suspicion confirmed through teeth found at the scene, Wooten said.

Nesbitt's family reported him missing in February. His mother, Sharon Floyd, told sheriff's deputies that she last spoke with him on Nov. 21, 2006, when he called from his grandmother's house in Adams Run.

Floyd told deputies her son had a drug problem and that he often stayed with a man who lived in "a known drug house" on Old Jacksonboro Road, according to a police report.

An investigation at the time failed to turn up any trace of Nesbitt. Sheriff Al Cannon said the probe has resumed and detectives are gathering information that hopefully will establish a time line for Nesbitt's movements and shed light on what happened to him. He declined to discuss what they have learned so far.

Cannon said investigators are treating the case as though it were a homicide so that evidence will be properly documented and preserved should foul play be found. "We're sort of looking at it from a worst-case scenario," he said.

Wooten said Nesbitt's family had been informed of his death.

"Of course, they are saddened by the loss," she said. "On the other hand, I think this also brings some sense of closure for them. After all, they have been missing their loved one for over a year."