What information would you need to argue in traffic court on the charge of failure to reduce speed and use due care in an accident in Nevada you were the last car in a 3 car rear ender?

You would need to show that someone else was driving, or that they were holding you hostage with a gun to your head and made you crash, or that something else suddenly and unforeseeably caused your car to be going too fast for the conditions or caused your brakes to not work, or caused you to be following too closely for safety, or caused your foot to be unable to find the brake pedal, or that it was more dangerous to try to slow down or stop than just to go ahead and hit whatever happens to get in the way.