AD Quality Auto 360p 720p 1080p Top articles1/5READ MOREGame Center: Chargers at Kansas City Chiefs, Sunday, 10 a.m.California Highway Patrol officers have been tight-lipped about the cause of the wreck, which also include a single car. Authorities have refused to identify the trucker whose rig hit the guardrail and came to a stop just south of the tunnel. He worked for Saia, Inc., a nationwide trucking company. Coroner’s investigators have declined to identify the dead, two men and boy, saying they were working to confirm their identities via dental records. 160Want local news?Sign up for the Localist and stay informed Something went wrong. Please try again.subscribeCongratulations! You’re all set! Friday’s 30-truck pileup and inferno that killed three people on the Golden State (5) Freeway may have been triggered by a trucker who lost control of his rig on wet pavement just past the tunnel-like underpass. The southbound big rig struck a guardrail — hurling its engine block into northbound lanes — and came to a stop about a third of a mile south of the tunnel just before 11 p.m., investigators close to the probe told. The mangled truck caught fire, and the spectacle apparently slowed traffic in both directions, with drivers steering around the burning truck and the debris for several minutes. Then, the chain-reaction collisions began in the 550-foot-long underpass.