But a tie means no sacrifice, right?
We could but what do we do at night? With 2 killing roles and a boosting one? With Nestor put away, we at least have a decent chance of surviving the night, which is 50%. Unless Diomedes has a secret ability which we don't know about(the 2 kills a night thing wouldn't be permanent now would it).
Is Diomedes' secret ability that he increases his chance of a kill to 100% once he makes a successful kill. That would explain his double kill last night(with Nestor doubling his kill ability?).