LOS ANGELES (AP) -- Investigators are trying to determine the cause of a fiery car crash that killed "Fast & Furious" star Paul Walker.
The Los Angeles County Sheriff's Department says speed was a factor in Saturday's one-car crash, though it'll take time to learn how fast the car was going when it smashed into a light pole and tree
Although authorities have not identified the victims, Walker's publicist says the crash also killed Walker's friend and financial adviser Roger Rodas. She says Walker was a passenger in the car when the two drove away in a 2005 red Porsche Carrera GT from a fundraiser in the community of Valencia, about 30 miles northwest of downtown Los Angeles.
Sheriff's deputies found the car engulfed in flames when they arrived at the site of the crash, near the fundraiser at Rodas' sport car dealership.
Meanwhile, the 40-year-old actor's fans have erected a makeshift memorial near where the wreck occurred. They gathered Sunday to leave flowers, candles and memorabilia from the action movies.