I WAS ENTERING A LEFT-HAND TURN LANE, WITH A RED LIGHT. THE THIRD-PARTY INVESTIGATION SHOWED I ENTERED THE LANE AT 35MP. I STARTED GENTLE BREAKING AND WHEN THERE WAS NO RESPONSE, I PUSHED THE BRAKE HARD AND TO THE FLOOR. I DID NOT FEEL THE CAR DECELERATE BUT THE INVESTIGATION SHOWS THAT BRAKED FOR 7 SECONDS PLUS AND HIT THE LAST CAR IN LINE AT ABOUT 20MPH. THE INVESTIGATOR WAS UNABLE TO RECREATE THE CIRCUMSTANCES.