1999 GMC SIERRA, TWO CARS INFRONT TURNING LEFT, WENT TO APPLY BRAKES AND PEDAL WENT TO FLOOR, NO BRAKES. ENDED UP CRASHING INTO THE CAR IN FRONT OF ME, WHICH IN TURN HIT THE CAR TURNING. AS I WAS MAKING SURE NO ONE WAS HURT, I NOTICED THAT MY TRUCK WAS LEAKING BRAKE FLUID ALL OVER THE ROAD. *KB