Lynching Link isn't a great idea. I'm not defending him, but it would be better to lynch him later, say at LyLo (which, for the sakes of this post, is assuming 3 mafia). Either he is mafia and we get another day, or he is Brawlmaster, and we hope he snipes mafia. The reason I say to kill him later is because he has a better chance of sniping, the fewer civilians are left. That being said, nobody has counterclaimed him, so I am not really willing to think he is not mafia.
I think it goes without saying, but just in case, if you CAN counterclaim, please do.
dd is probably not mafia either, as there would be no reason for mafia to try to act civvy at this stage of the game, but rather just blend into the crowd.