The case is closed on Michael Cavallari's death, but questions will forever linger about what exactly happened in the time surrounding his car crash in southern Utah.
Grand County Sheriff officials have ruled Kristin Cavallari's brother's death accidental as the autopsy revealed frigid temperatures led to hypothermia. It is unclear why his body was found so far from the vehicle.
The 30-year-old was discovered on December 10 at the bottom of a "steep and rocky" hillside about two weeks after his abandoned car was found with the engine running and air bag deployed.
Grand County Sheriff Steven White told ABC News on Tuesday that authorities are
[Image via Grand County Sheriff's Office.]