Informant? I'm no informant! I don't have any night actions! I know that....well its what I used to suspect Boyd.....and apparently it wasn't him doing "it".....I can't tell you what "it" is yet.......sorry....I do have a small speculation though.
It could be possible that Adalaide is a killer for the Mafia. When she killed Pedro she ran out of bullets, so this morning she had to use a knife to kill Boyd, but then again its probably wrong because she was being tortured, so her night action, if she has one, would have been interrupted..... So that was a speculation.