From the Gallatin County Sheriff's Office:

On June 4, 2012, at approximately 10:30 AM, a two-vehicle accident was reported at the intersection of Frontage Road and the Valley Center Spur.

Responding Deputies and the Montana Highway Patrol discovered that 28-year-old Caleb Jones of Gallatin County had been riding his motorcycle without a helmet through the intersection and was involved in the accident.

He was transported to Bozeman Deaconess Hospital, and subsequently flown to St. Vincent’s Hospital in Billings.  He succumbed to his injuries and was declared deceased at approximately 4:00 PM, having died of blunt force injuries of the head.