SKOWHEGAN, Maine — The Norridgewock man police say shot and killed an Anson man two years ago pleaded not guilty in Somerset County Superior Court on Thursday afternoon.

Robert Lee Nelson, 40, is charged with murder in the death of Everett Cameron on Oct. 31, 2009. He was indicted by a grand jury in September and faces 25 years to life in prison if convicted of the Class A crime.

Nelson also faces a Class C charge of possession of a firearm by a felon, which carries a penalty of five years in prison and a $5,000 fine. He also pleaded not guilty to that charge.

Maine Department of Public Safety Steve McCausland said last month that Cameron, 60, was shot to death while sitting in his pickup truck a short distance from his home on Town Farm Road in Anson.

“Detectives have investigated the death over the past two years and say the two men did know each other,” McCausland said in a press release.

Cameron spent the first part of Oct. 31, 2009, hunting. He returned home in the early afternoon and changed out of his hunting clothes, investigators said shortly after the shooting.

At some point, he drove his 1990 silver-and-maroon Chevrolet pickup truck to a woods road adjacent to his home and parked about 20 feet from the road. Cameron’s girlfriend found his body about 4 p.m. that day.

Nelson was formally charged with murder on Sept. 16 at the Somerset County Jail in Madison, where he was being held on an unrelated charge.

Ten family members and friends of Cameron watched from the courtroom, but declined to talk with the media.

Assistant Attorney General Leane Zainea, who is prosecuting the case, also declined to comment.

Nelson is being represented by attorney Philip Mohlar.

Attorneys have 90 days to file their motions. There were no police affidavits on file.

Nelson is being held without bail at the Somerset County Jail pending a bail hearing if and when Nelson requests one.

On Oct. 4, 1994, Nelson was convicted in Penobscot County Superior Court of burglary of a motor vehicle.