Auto-translated
Gur, you won't be offended if I don't include links, right?
So, Kyle visited Arandor. This is obvious (Captain Obvious is on the case). Kyle was killed (again, Captain Obvious). We see that Kyle was a snowman => either a kind snowman with Neutral alignment or a snowman maniac. Let's leave this assumption for later.
Night 2. Cash sleeps peacefully. The lazy person should be walking around someone's house. This is the first piece of evidence that Cash is not lazy. Next, Cash couldn't open the door; he was blocked. But the snow woman was at Magnus'! This means it was an Expert! And the Expert only blocks bad guys. This is the second piece of evidence that Cash is not lazy, and evidence that Cash is a bad guy. Crabby died at Cash's door. I'm inclined to believe that he was killed by the Baker, who visited Cash. Crabby was Mafia, so Cash is a snowman maniac who skipped his turn.
Night 3. Neyra dies at the Witch's door, and there's also a Mafia corpse. Since there's only one snowman maniac left, we conclude that the Baker killed Neyra – the second snowman maniac.
Let's go back to Kyle. Both snowman maniacs are dead. This means Kyle is a kind snowman with Neutral alignment. But the Baker, the snow woman, the confectioner, and the Expert all had turns. The lazy person's turn was missing. We conclude that Kyle is the lazy person.
In this case, we can assume that Wesker killed Arandor, but instead killed Kyle.