A Tennessee woman says her fiance was killed by their next-door neighbor during a longstanding dispute that began over who was allowed to mow the grass between their homes. In a video posted to Facebook this month, 43-year-old Davey Roach Jr. said he was concerned about his neighbor who always carried a gun and had a security camera surveying his house, The Knoxville News Sentinel reported. Roach complained to Rocky Top police saying George Patterson, 67, had repeatedly threatened his family.