(AFTON, WY) — A St. Anthony man was killed in a construction accident in Star Valley Monday. Officials say 23-year-old Killian Rigby was run over by a track hoe at a construction site in Afton. The accident was reported at around 6:30 p.m. Rigby was an employee of DePatco Construction in St. Anthony. The company was replacing an irrigation pipe at the intersection of U.S. Highway 93 and First Avenue. The incident remains under investigation.