A man shot and killed Tuesday night in the Town of Madison was not armed. Dane County investigators say 25 year old Eugene Walker did not have a gun at the time he was shot by a sheriff’s deputy. Investigators are still looking for the gun Walker allegedly used to hold his former girlfriend at gunpoint at her Fitchburg residence. Walker fled and was located by officers at around 11:00 p.m. The deputy who shot Walker, an 11 year veteran with the Dane County Sheriff’s Department, said Walker refused to follow orders and then charged him, pulling the deputy to the ground, at which point Walker was shot. Walker suspect was pronounced dead at a Madison hospital and the deputy was treated and released. He is on administrative leave during the investigation.