Forum:Missing Some missions?

Uh Hi just a quick query. I've been looking for the mission in DR2 where Chuck goes to the Palisades Mall and talks to a depressed guy who is standing on top of the slot machines and kills himself when you talk to him under certain conditions. Maybe I have missed it but otherwise it is missing from the mission list. I kinda wanted to find it cos I saved him in one playthrough and in my next he blew his head off the instant i talked to him...