Mark B. Thompson, 70, was staying with his two brothers at a family hunting cabin on Botsford Hollow Road in the rural Town of Allen, near Fillmore in Allegany County, New York, when he was fatally shot during a late-night incident on November 23, 2025; public reports identify him as male but do not specify his ethnicity. Online records of gun violence victims list his death as occurring in Fillmore, New York, noting that he “lost to gun violence” on that date, while regional news coverage
describes the location more specifically as a hunting camp in Allen, a small community in the same county. Those same reports indicate that Thompson’s home address was in Canterbury, Connecticut, suggesting he had traveled to western New York for a hunting trip with family members.
According to New York State Police accounts summarized in local news articles, the three brothers were sharing the cabin when a physical altercation broke out on Sunday night. At approximately 10:06 p.m., troopers were dispatched after a 911 call reported a disturbance at the camp. Investigators later determined that during the confrontation inside the cabin, Thompson and his brother David E. Thompson, 69, were both shot with a rifle. Both men were pronounced dead, and their deaths were subsequently recorded in gun-violence databases as a double homicide associated with the Fillmore area.
State Police identified the third brother, 65-year-old Scot Thompson of Englewood, Florida, as the suspect in the shootings. Investigators say that after the gunfire, he left the hunting cabin in David Thompson’s vehicle, prompting a regional “be on the lookout” alert to surrounding law-enforcement agencies. The vehicle was later located by the Livingston County Sheriff’s Office and Geneseo Police Department, who stopped the car and took Scot Thompson into custody without incident. He was turned over to New York State Police, processed at the Amity barracks, and then transported to the Allegany County Jail, where he was held for arraignment on two counts of second-degree murder and two counts of criminal use of a firearm. Authorities have stated that autopsies for Mark and David Thompson were scheduled at Strong Memorial Hospital and that specialized investigative units, including the State Police Forensic Identification Unit and the Allegany County District Attorney’s Office, were assisting in the ongoing homicide investigation into the circumstances surrounding Mark Thompson’s death.
