Robert Steven "Bobby" Singer owns and operates a car salvage yard in Sioux Falls, South Dakota. When his wife became possessed, he stabbed her in self defense. Rufus Turner came barging in, and exorcised the demon. This was Bobby's introduction into the supernatural. Since he was a regular hunter already, when Bobby became a Hunter his skills were usable against the supernatural. He became friends with John Winchester, and the boys - Dean and Sam. Last time he saw John, there was a disagreement and he threatened to shoot him full of buckshot, cocking the shotgun.