Mafia 104. Alrion

Am I correct in understanding that at the beginning of the thread, our masks are listed, but how they relate to the factions and abilities is still unknown? However, there is some logic to it, and like in a detective story, one can guess, right?
And then, you post the cards in the thread that are already randomly assigned to the masks and, consequently, the roles?

ND: goes to the scene of the previous murder and, by choice, learns one of the two types of the murderer's role.

If everything I wrote is correct, then this ND actually works to verify the correspondence between the masks and the factions, such as town/mafia/man?