I'm tending to side w/ LG also... I wouldn't worry about your scenario yet, Ice. If not detective, LG wouldn't know DD was Don, as the other mafia team shows innocent on investigation... LG and DD would have to be on the same team for that info to be known.
After outing DD, LG would not be able to provide any positive mafia IDs other than those on her own team. It's unlikely that she'd name her entire team.... As the mafia is all around us (likely 7-8 mafia v. 7-8 townies?) chances are that she'll find more.... If she hits a real dry spell in finding other scum, I'd say we could worry about your scenario.
OK your right, as I was typing out why it was possible still I remembered that all the mafia come back innocent. I was wrong earlier about the Don not showing innocent.
That seals the deal for me.
I was talking about LGs post. To many posts fell in between.