Three votes is a lynch, though, so the unvote is too late.
Whilst one member frantically tried to go back on their words, it was too late to save Watson. Despite his pleas, he was blindfolded and taken onto the deck, then one of the crew shot him. Fortunately, their aim was somewhat poor and the Doctor lived; unfortunately, it was still enough for him to be out for the count for a good month or more, and thus dead to the hunt for the real killers...
Visorslash, Doctor Watson, Doctor, Lynched.
IT IS NOW NIGHT.