as the driver keeps going. fellow firefighters and police run after the car and then -- police open fire. hoping to stop the driver. james heck is still rolling as shots ring out. >> i ran as close as i could to the scene and kept on shooting. >> the driver swerves to escapes the bullets and krause is thrown from underneath the car into the road. one of the rear tires runs over krause's leg, breaking his femur. firefighters rush over to help and cops pull the driver out of the vehicle. the operator of the suv is 30-year-old luther harling. earlier in the day he nearly struck a police officer with his car in neighboring norristown. authorities gave chase, but called off the pursuit after harling crossed into the next town. but a half hour later, harling comes barreling through the road block set up around the accident scene. firefighter krause is conscious, but badly injured.