CAR WENT ONTO BAR DITCH AND TRAVEL ALONG THE HIGHWAY IN A STRAIGHT LINE FOR OVER A QUARTER OF MILE AT 69 MPH BEFORE HITTING A TREE! THERE WERE NO SIGNS OF OVER CORRECTING OR BRAKING! WITNESS STATED HE SAW NO BRAKE LIGHTS FROM THE CAR BEFORE HITTING THE TREE. THE PASSENGER OCCUPATIONAL SAFETY RESTRAINT SYSTEM FAILED CAUSING BLUNT FORCE TRAUMA INJURIES RESULTING IN THE DEATH OF MY FATHER HITTING THE WINDSHIELD! THE SHOULDER SEATBELT WEBBING FAILED TO RETRACT AND WAS EXTENDED ALL THE WAY OUT AND BECAME LODGED IN THE D-RING! MY BROTHER, WHICH WAS DRIVING STATED HE REMEMBERS DRIVING DOWN THE HIGHWAY AND THE SIDE CURTIAN AIRBAG HITTING HIM IN THE UPPER LEFT TEMPLE OF HEAD! THE WRECK IS BELIEVED TO BE CAUSED IN FAILER OF AIRBAGS AND BRAKES!