A 50-year-old Livermore woman died in a motorcycle crash, identified by the Alameda County Coroner's Bureau as Janelle Benson Weispfenning. The collision occurred at the intersection of Isabel Avenue and Stanley Boulevard. Police believe Benson failed to stop at a red light before entering the intersection and collided with a sedan driven by an 87-year woman from Pleasanton. The driver was transported to the hospital with minor injuries and is now cooperating with the investigation.