Milton police are investigating a fatal pedestrian accident that occurred Thursday evening on Randolph Avenue near Heather Drive. Odson Vincent, 75, of Randolph, had serious injuries when police arrived Thursday around 6:22 p.m. and was in traumatic arrest. He was taken by ambulance to Beth Israel Deaconess Milton hospital, where he was pronounced dead, police said. Witnesses told police the man was attempting to cross from the northbound side of the road when he was hit. Police Chief Richard Wells said Friday that the driver, who is also from Randolph, stopped “immediately and called 911.”Natalie Feulner can be reached at firstname.lastname@example.org.