Revealing mistake: When Tisean has just died and Stoney is getting out the car, Tisean is still breathing.
Factual error: In the bank robbery scene the signs in the teller windows say FIDC. The correct abbreviation is FDIC.
Audio problem: During the second robbery, when TiTi is on the floor, the obviously dubbed vocals don't coincide. One is of TiTi saying "Let's go." She's on the floor, obviously not saying anything.
Answer: I would also think Luther had found his "Retirement Fund" and was not going to give it up that easy, and had it hidden in a way that it was not going to be easily found, like he did, thanks to the not so crafty criminals who hid almost a million dollars in an air vent.
I agree with that answer. Bear in mind that if Luther could find the money easily, something he must have done as part of his job as the chief janitor of the building, he sure as hell wasn't going to make it easy for the next person to get it from him. And the amount, according to "Francheska" (Frankie), was "Over $75K and counting..." not $750K. There's a big difference.
Kahuru1
I thought it was "296,000 and counting."