Yes, it's possible. Although AV doesn't have to be the one with the investigation ability.
It's possible because AV does very weird plays as a wolf and I wouldn't put something like this past him. The mafia could have certain abilities to make this effective for them. i.e. a death tailor role that can change how someone flips.
Once, I have seen the mafia target their own player, while the Mafia nurse saves, to make that player look like a villager.
All I can say is that AV's behaviour doesn't make sense from a villager-POV. He's not thinking reasonably and all he wants to do is get me lynched despite all I've done.