I think May and Jarek are both confirmed evil since neither wants to nominate a dead player.
In my opinion, May didn’t want to initiate a whisper with Jarek, and the latter just didn’t reach out. The former came up with a bluff on the spot which threw shade against his neighbours, whereas the latter reached out thinking their ability operated like a High Priestess; they couldn’t coordinate. The fact Bionic received a duplicate ability claim sorta endorses this hypothesis, since why.
Kiiruma made mechanical sense as Jonah Magnus, but he sorta just agreed with the evil worlds. He didn’t think Jarek was evil because May’s information incriminated them; but the fact is May only ever pushed on the other side of that ping. Kiiruma couldn’t have jumped to Jarek, though.
Gertrude!Jarek who killed Minion!Kiiruma… mechanically sound, socially doesn’t make sense. May’s been obtrusively distracted all game, only focusing on solving worlds immediately after she’s been suspected today.