Hired Assasin

As soon as you are in private, Manny starts going off. "That jerk! I had an old car that I didn't need anymore, so i sold it to him for ten grand. Problem is, the check he gave me is a total fake-He doesn't even have a ****ing checking account! I find out then that he's been giving bad checks for years, and he doesn't even lawfully pay for anything!"
You let the man let off steam for a minute. Finally he says: "So you're a hitman, huh? Then go over to his apartment and kick his ass! I can pay you $25,000."
Doubts run through your head: This guy could be lying to save his own skin.
You hear someone coming down the alley. If you're going to shoot the guy, it's now or never.