An off-duty Adams County deputy was hit and killed Tuesday night on Highway 52 by a driver in Fort Lupton, sheriff’s officials said. Deputy Joshua Tapia was walking in the area when he was hit. The driver of the car stopped, rendered aid and called 911, Sgt. Adam Sherman with the Adams County Sheriff’s Office said. The crash happened on Highway 52 near South Purman Avenue around 9:27 p.m.