If Alma killed and killed Rafaga, then the absence of a murder raises obvious suspicions, but we also need to consider things like:
- the mafia could have killed as Rafaga
- could they have poisoned? Revan, does a hit on the chief mafia member immediately show up, or not?
- hitting Inara's east defense (although One-Eyed breaks through it, so this is if the mafia killed as a concubine, although such a defensive strategy is possible in principle)
Plus isolations, of course, in all variations.
It's harder to reconcile everything so that all three actions of the mafia can be explained (and their absence). But in general, this could be the case.
In general, eliminating someone sounds cool, I like that, but I would still play with Tox for a bit.