Grand Theft Auto IV Walkthrough

Francis will call you up and tell you that he's going to text you a number, the number of the guy that's meeting him there to exchange incriminating pictures of Francis for money. You will then be able to call the number so that the guy gives away his location. So, after receiving the text message, give the blackmailer a call. Then, begin walking down the stairs towards the water and keep an eye (and ear) out for a guy with a cell phone. He'll be on a bench to the left of the stairs. When you get close to him, you'll hear him talking on the phone and in real time, and that's when he'll take off running. When he does, he's an easy target for a firearm of your choice. Be sure that once he's slain, you grab the memory stick holding the pictures before leaving the scene.

Your flagrant use of firearms will no doubt catch the attention of the cops in the area, so once the blackmailer is dead and the pictures are acquired, you should take off running back towards the street. If you made enough of a fuss, police cars will already be waiting for you (and if not, you're lucky and can simply steal another car and lose your wanted level). If there are cops, however, you're going to find yourself in a sticky situation. Kill who you can and steal one of their cars. Then, begin the endless drive around the city to lose your inflated wanted level.

It's only at the time that you lose your wanted level will Niko and Francis make contact with one another. Francis will ask that you meet him up at an area off of Walnut Way, on the northwest portion of Algonquin. After you lose your wanted level, this will be a pretty leisurely drive, so head over there, get out of your car, and go to Francis's location on the HUD to make the exchange. Thereafter, the mission will come to an end.