Authorities believe the shotgun used in the fatal shooting of a limousine driver at Jayson Williams' estate belonged to the former NBA star.

Acting Hunterdon County Prosecutor Steven C. Lember said yesterday it appeared that the shotgun was one of several Williams kept at his 65-acre estate.

"I can't tell you specifically what the purpose of the shotgun was, but it was clearly a shotgun, and it belonged on the property," Lember told The Associated Press. "We have reason to believe it was one of a number of shotguns owned by Mr. Williams."

Limousine driver Costas Christofi, 55, was found with a shotgun wound to his chest at 2:54 a.m. Thursday inside a bedroom in the home.

Lember said an autopsy was scheduled for yesterday and results might not be available for weeks. He did not anticipate any immediate criminal charges.