UPDATE: Dead Motorcyclist Identified as Walnut Creek Man

A motorcyclist who was killed late Wednesday after he crashed while speeding past a police officer has been identified as Walnut Creek-resident James Peeff, according to the Alameda County Sheriff's Coroner's Office.

Peeff, 25, was pronounced dead shortly after 11:50 p.m. when emergency crews found him pinned underneath a minivan at the intersection of Murrieta Boulevard and Holmes Street.

Sgt. Keith Graves said Peeff was seen minutes earlier speeding near the Holmes and Second streets area. An officer attempted to pull him over, but he sped off.

"It happened so fast," Graves said. "The officer was unable to turn his lights and siren on before (the motorcyclist) blew off."

The motorcyclist zipped southbound on Holmes Street and ran past a red light, T-boning a green minivan that was traveling eastbound on Murrieta Boulevard, Graves said.

"He was easily going 90 plus," Graves said of motorcyclist.

Peeff, who was wearing a helmet, was thrown from his motorcycle and pinned underneath the minivan. He was not licensed to ride a motorcycle, police said.

A woman driving the minivan suffered minor injuries and was taken to a local hospital. There was no one else in her vehicle.

It is unknown at this time if alcohol or drugs were a contributing factor to this collision, police said. An investigation is ongoing, and anyone who witnessed the crash is asked to contact the Livermore Police Traffic Unit at 925-371-4850.

The intersection of where the collision occurred was closed until approximately 4:30 a.m. Thursday due to the investigation. This was the second fatal motorcycle crash in Livermore this year and the fourth motor vehicle fatality of the year.

Livermore Patch will update this story as more information is made available.