CARLSBAD, Calif. -- A motorcyclist killed in a collision with a suspected drunk driver on Carlsbad Boulevard after he completed a cross-country road trip was identified Sunday as a 42-year-old Massachusetts resident.

Wayne Francis of Eastham, on Cape Cod, died of multiple blunt force injuries after the crash around 1:25 a.m. Saturday crash, according to the San Diego County Medical Examiner's Office.

Francis and another biker had started their trip on the cape, said Carlsbad police Lt. Don Rawson. The other motorcyclist was not hit.

The victim was stopped at a red light at Island Way when a vehicle hit the motorcycle from behind, Rawson said.

The alleged drunken driver was identified as Keith Roles, 41, of Poway. He had minor injuries and was taken to Scripps Hospital in Encinitas for treatment, Rawson said.

Roles was arrested on suspicion of drunken driving and vehicular manslaughter, and was booked at the Vista Detention Center. He was later released on bond, according to the Sheriff's Department.

Police are still investigating the crash and Roles may face other criminal charges, Rawson said.