VIDEO: Investigators are working to determine what caused a trailer home fire that killed one person Sunday morning in Lincoln County. According to a press release from the Lincoln County Sheriff's Department, a 911 call for a report of a structure fire came in around 7:45 a.m. The fire happened at the Clear Lake Condos on County Road A in the Town of Bradley, north of Tomahawk. Emergency responders on scene found the resident of the trailer home, a 77-year-old Tomahawk woman, had gotten out of the burning building. Investigators say she was being helped by her neighbors.