some are wondering if perhaps it s a case of life imitating art. walker, of course, starred for years with vin diesel in the drag racing speed chasing blockbuster series. now, an investigator says the porsha he was riding in on saturday night crashed into a light pole and burst into the flames. it killed walker and his racing team partner. about 30 miles north of hollywood. a video posted on youtube shows the fire just moments after that horrific crash. cnn s alan duke was at the scene of the crash saturday night. joins us now. alan, new details seem to be coming out hourly almost on this death. any word on this drag racing theory, how fast they were going in. well, they were speeding. that is known. the sheriff s investigator told me that that is a fact, they were going faster than the 45-mile-per-hour posted speed limit which ironically was posted on the lig light pole