Multiple endings!
Ending 1: "Now, you're going to be hunted down for the rest of your life."
Ending 2: I bite my own tongue and spit it at his face. My germs/spit will convict him.
Ending 3: I use the last my strength and try to break his nearest bone, scaring him for life.
Ending 4: "This isn't over, Mr. Anderson."
Personally, 2 and 4 are the most badass.