(BOISE, ID) — Authorities have arrested a southwestern Idaho teenager accused of killing his grandmother. The Payette County Sheriff’s Office says 18-year-old Tyler Naughton was found driving his grandmother’s stolen pickup late Sunday. The victim, 60-year-old Sherryl Kenny, was found dead with a lethal gunshot wound in a home south of Fruitland that morning. A preliminary hearing is set for today. Naughton is being charged with second-degree murder.