The Sacramento County Coroner’s Office has identified the woman killed earlier this week on Highway 99 when she was thrown from a crashing motorcycle and then run over by passing cars.

She is listed on the coroner’s website as 21-year-old Rebekah Rose London of Pine Grove, Amador County.

CHP Officer Michael Bradley said that at 9:15 p.m. Monday motorcyclist Christopher Liby, 32, was riding northbound on Highway 99 approaching 47th Avenue when for unknown reasons his motorcycle went down.

Liby and London, a passenger on the motorcycle, were thrown to the roadway. London was then struck numerous times by passing traffic.

She died at the scene.

Witnesses told CHP officers that Liby was traveling at a high rate of speed when he crashed. He was arrested on suspicion of drunken driving, according to Bradley.

He was transported to the hospital with moderate injury.