Okay, so for real now.

In the Mafia wiki, it says that Mafia are also known as werewolves and vampires.

Imagine this: There's both werewolves and vampires in this game. As a werewolf, you can't infect a vampire (which would be Slowpoke) but you can kill them.

Just a theory.

I think I was going for getting Slowpoke lynched on Day 2 if I survived anyway, I found Kadabra a lot more believable than him. Shall we see?