On November 30, 2013, at approximately 3:30 PM (PST), Walker and a friend, identified as Roger Rodas by organizers for Walker's charity, Reach Out Worldwide (for victims of Typhoon Haiyan), left one of its events. Shortly after leaving in Rodas' red Porsche Carrera GT, the driver lost control and crashed into a light pole and tree in Valencia, Santa Clarita, California and the vehicle burst into flames. The Los Angeles County Sheriff’s Department declared the two dead at the scene. Coverage was first reported after Walker's publicist, Ame van Iden, confirmed early reports of his death. Rodas became friends with Walker after meeting at a race track. He became his financial adviser in 2007 and helped to establish Reach Out Worldwide. Rodas was the CEO of Always Evolving, a performance shop for high-end vehicles owned by Walker, located in Valencia.The Los Angeles County Sheriff's Office stated that speed was a factor in the crash. Burned rubber and doughnut marks were found in figure 8 patterns on the road at the crash site, but it was not clear to officials if these were related to the crash.
Source : Wikipedia