User blog comment:Master04465/Owner of Pawn Shop and Bob in Case Zero/@comment-1656767-20100912194300

You cannot kill Dick at all. You can kill Bob though.

Here are the screenshots I already took.

Dick.

Bob.

Once Bob defects, he is harder to kill than Jed, because he will not stop shooting you with his assault rifle. The only weapon I have found which works at killing him is the assault rifle. Try it, he is by far the toughest defected survivor.