Sheriff 's office says it is focusing on speed as the cause of Saturday 's fiery crash . Walker family asks for charity donations instead of flowers . Comment: At the time of his death , Walker was working on the seventh film of the franchise , due out next year . The actor was in the middle of producing the seventh `` Fast & Furious '' movie when he died .
Sheriff 's office says it is focusing on speed as the cause of Saturday 's fiery crash . Walker family asks for charity donations instead of flowers . Comment: The actor was in the middle of producing the seventh `` Fast & Furious '' movie when he died .