A 63-year-old San Ramon man died at John Muir Hospital after he was injured in a grinding crash on northbound Interstate 680 in Walnut Creek Monday.
Two cars, a vintage black 1974 Porsche and a Jeep SUV were involved in the crash with the Porsche operator sustaining, identified as Richard Adeokun of San Ramon suffering major injuries at the scene, just north of the North Main Street offramp. Adeokun died later at the hospital.
Two people in the Jeep suffered minor injuries, according to the CHP.
The crash was reported at 11:58 a.m. with a traffic-clearing SigAlert declared minutes later. Numerous vehicles pulled over to render aid, witnesses said.