Coroner withholds autopsy findings , ' n't even confirm identities of dead . Video obtained by CNN appears to show the car erupted in flames a minute after the crash . Co - star Vin Diesel addresses crowd of angry people with a loudspeaker . Sheriff 's office says it is focusing on speed as the cause of Saturday 's fiery crash .
Coroner withholds autopsy findings , wo n't even confirm identities of dead . Video obtained by CNN appears to show the car erupted in flames a minute after the crash . Co-star Vin Diesel addresses crowd of grieving fans with police loudspeaker . Sheriff 's office says it is focusing on speed as the cause of Saturday 's fiery crash .