Suicide Watch

As you can learn from various people in Rivet City, Mister Lopez is a suicidal resident, who is trying to end his life every single day. You can find him on the flight deck at the top of tower bridge every day from 8:00 - 12:00 and 15:00 - 17:00, contemplating suicide. You can:
 * Help him to commit suicide by pushing him off the deck (you will receive negative karma).
 * Talk him into committing suicide by saying he's pathetic (also negative karma).
 * Use speech to convince him that Ted Strayer needs someone to give him guidance and that Lopez is the one to provide it (you will receive positive karma).
 * Push him off manually to his death (no karma change).
 * Shoot him with a weak weapon (obviously when there is no guard around, mentioned below), so that he runs off the edge by accident trying to get away from you (also no karma change).

Reward

 * Negative or positive Karma