"Paul is the heartbeat of this franchise and we're gonna see to it that his energy and presence lives on forever," Gibson later posted on his Instagram account. He also posted a video of the film cast and crew recently celebrating Walker's birthday.
Sheriff's deputy Peter Gomez said investigators are working to determine how fast the car was traveling and what caused it to go out of control, including whether the driver was distracted or something in the road prompted him to swerve.
After the Porsche crashed into a light pole and tree, it burst into flames. The downed light pole had a speed limit sign of 45 mph (73 kph).
