Goffstein & Corsey Walkthrough Part 2
Walkthroughs for Blackwell Epiphany
The Trail of Tanya Corsey
Unless you have already done so, you'll need to have Joey look at the Celebrity Endorsement featuring Tanya Corsey, which is hanging on the wall at Field's Gym.
Don't bother trying to look up that name yet. For some odd reason Rosa acts as though you're jumping ahead in the story if you do. After he has looked at the picture, you'll need to head back to George's apartment.