'16 and Pregnant' Alum Sean Grainger Killed in ATV Accident at 20

Sean Grainger, best known for his appearances on "16 and Pregnant," has died. Grainger and then-girlfriend Selena welcomed their first daughter during the sixth season of the MTV reality show. North Carolina’s Watauga County Sheriff’s Office said Grainger went to move an ATV when it went off of a steep embankment. He was thrown and the ATV landed on top of him. He is survived by his two daughters, his mother and six sisters. Grainger was 20 years old.