Isn't it a bit odd that yesterday, Menta was defended by the journalist who questioned him?
Are you a town member? no
Are you Mafia? no
Are you Arcanist? no
If the first statement is a lie, then he is Town.
If the second statement is a lie, then he is Mafia, but not Arcanist.
If the third statement is a lie, then it's a logical fallacy.
As you can see, the alibi is unreliable.