I'm starting to think Naz killed her.
Well, they dropped a hint last night that he did not - when they showed a body of another girl killed in the same manner.
Having said that, I'll leave open the possibility that Freddy/Omar had something to do with the 2nd body - using one of his outside crew to make it look like Naz is not the killer.
I think the "kiss" will come back to haunt the lawyer - we saw it on camera, and in the scenes from next week we heard, what I think was - Stone giving the closing arguments. So, the lawyer either steps away, Naz tells her to step down (based on Freddy's advice), or there are some ethical charges filed, requiring her to step down.
I still think this ends in a Naz conviction at trial, followed immediately by a motion for new trial on the basis that the prosecution did not turn over potentially exculpatory evidence - the new crime that appears to be identical - and in the end, Naz walks out of Rikers a "free" man. Obviously nothing will be the same. Naz is probably indebted to Freddy, and is better equipped to work for Freddy on the outside, than anything else right now - unless he can magically transform back to old Naz - which I doubt. His family is literally in shambles - mom has disowned him, they sold most of their possessions, Dad lost his cab medallion, etc.
Ultimately, this is a bad case - Naz is not the killer, and so he and his family were thrown into a bad situation. But, almost all of it boils down to a series of bad decisions by Naz - going to the party, taking the cab, picking up the girl, taking the drugs, panicking afterwards (though that at least makes some sense), and then the slew of bad decisions made in jail - even accepting that some decisions were made in self-preservation mode.