I edited my above post to deal with any concerns.
I don't know why one mafia would sacrifice themself for another, when it is pretty obvious we would lynch Kadabra tomorrow after Slowpoke's sanity being proven.
I think he knew Kadabra was innocent, and so on day two when we look at all the people who voted for innocent people, he could put his hand up and say "I didn't vote for him. Don't look at me."
Clefairy: Oh! Thank you!