The California Highway Patrol continued to investigate a fatal party bus crash Monday that killed one passenger in his late 30s Sunday night and caused the temporary shutdown of northbound Interstate 280 near Portola Valley.
The driver of the San Francisco-based party bus - a converted Chevrolet Express 3500 - was initially nowhere to be found, according to CHP Officer Art Montiel.
But, four hours later, a man wandering along the highway was found with injuries. That man, later identified by CHP as 43-year-old Jason Quinonez, is now facing a trio of felony charges, including DUI and manslaughter.
RAW VIDEO: Aftermath of Fatal Party Bus Rollver in Portola Valley
Officials say Quinonez lost control, hit a tree, and the van rolled 20-feet down an embankment near the Alpine Road exit.
The road was closed until just before 5 a.m.
Officials say the party bus company is based out of San Francisco.
The Santa Clara Coroner has not released the name of the victim.
Photo Credit: NBC Bay Area