LITCHFIELD, Conn. (AP) — A 39-year-old man was fatally shot in the parking lot of a Connecticut law office and a partner in the law firm has been named as the subject of the homicide investigation.

The shooting happened just before 5 p.m. Monday outside the Litchfield office of Cramer & Anderson LLP, which is located across the town green from several restaurants that were busy at the time.

State police said they responded to numerous 911 calls, including one from the shooter, and found Matthew Bromley dead in the parking lot. He had been shot once in the head, police said.

Trooper Josue Dorelus, a state police spokesperson, told The Hartford Courant that an argument preceded the shooting and police are trying to determine whether the shot was fired in self-defense.

“The subject of the investigation, identified as attorney Robert Fisher, remained on scene and spoke with State Police,” the department said in a brief news release Tuesday afternoon.

Cramer & Anderson, in a statement described the shooting as a “tragic incident” involving Fisher, a partner at the firm, who handles mostly probate, estate planning and land use matters, according to the firm’s website.

“Attorney Fisher will be on a leave of absence while the police investigation is carried out,” the law firm said.

State police said even though the shooting occurred in the center of Litchfield, there was no threat to the public.

No charges were immediately filed. It wasn’t clear whether Fisher had an attorney who could comment. A message was left at a phone number listed for him seeking comment.

Fisher, who lives in Goshen, is also a justice of the peace. He has been active in the Litchfield County Bar Association and has assisted bar association members with firearms training, the Republican-American of Waterbury reported.