A 51-year-old man is dead after a reported altercation at a home in Alton, police said. Joseph Webber, a transient, was found “in need of medical attention” when state troopers arrived at the 4591 Bennoch Road home late Saturday night, according to Maine Department of Public Safety spokesman Stephen McCausland. [Subscribe to our free morning newsletter and get the latest headlines in your inbox] The troopers were responding to a 911 call reporting a physical altercation at around 11:15 p.m., he said. Webber died at the scene before local EMS personnel were able to transport him to a hospital, McCausland said. Investigators have interviewed the three other adults who were at the home at the time and have been collecting evidence at the scene “all day” Sunday, he said.