So you admit to forming a bloc, and you give a WIFOM defense. Excellent tactic.

What makes Winston so guilty, then?

During my conversation with him I put him in such a position that any mafia would choose the same answer. Unless he anticipated my move and tried to passive-aggressively manipulate me, then he is definitely a townie. And if it turns out I am wrong, then I will know it very shortly, provided he survives.

To go into any more detail would be suicide for me. Let him live, and pick a low-key bandwagoner instead, like Seon.