On August 15, 2012, at approximately 6:15 pm, Idaho State Police investigated a crash involving two motorcycles on Old Hwy 91 at Fort Hall Mine Road, south of Pocatello, ID.   
Kirk D. Later, 59, of Pocatello, ID, was traveling north on Old Hwy 91 near Fort Hall Mine Road on a 2008 Harley Davidson motorcycle.  Later struck the back of a 2003 Big Dog Motorcycle that was attemtping to turn left onto Fort Hall Mine Road from the northbound lane of Old Hwy 91.  The rider of the 2003 Big Dog motocycle left the scene. 
Later was transported by ground ambulance to Portneuf Medical Center in Pocatello, ID.  Later was not wearing a helmet. 
Alcohol was involved in this crash, report police.  The investigation is continuing.