But why would a Cossack go to kill Red, who has no weaknesses, when there's Neira? Unless the Inquisitor redirected the converted Cossack. But how would he know it was a Cossack? Although, maybe the secret lies in the Inquisitor's new abilities, which we don't know about.
Or maybe it was a Crusader attacking, in which case Red is definitely not from Lithuania.
Yesterday's "1595" didn't point to Neira after all... I think we should execute the werewolf, but the evidence seems to be far more complex than it initially appeared. So I wouldn't rush to conclusions about Haven. Remind me, by the way, what was found on him?