If Sherry Palmer doesn't wind up taking a bullet; I'll be terribly disappointed. I agree with your assessment of Nina...she is the mole. Some folks say that there are TWO moles, however. One thing is for sure...this show sure does keep you guessing.

Well, Jamey was the Gaines mole. Now we're talking about the Drazen mole. I'm sure Jamey didn't know about the Drazen mole and the Drazen mole probably didn't know about Jamey.
It was Nina and Tony who left Jamey alone when she committed suicide and it was Tony who actually interrogated her.
As I said above, I don't think there's a second mole, but I'm sure there's a second surprise.
It's addictive, I'm looking forward to tonight!