I believe number one. Genovese and Luciano would have had easy access, but Maranzano made sure his men patted everyone down that were about to enter the front office. Salvatore had a strict no weapons policy. LE was not subjected to this. It makes sense that non Italians were used on the Maranzano hit. Bugsy was well know to members of the Gambino, Genovese, and Lucchese crime families at the time, but not that well know to the Bonanno and Profaci families till later on. Tommy Lucchese pointed Maranzano out to the killers so by doing that, it shows Maranzano and the killers did not know each other.

As for Luciano being at the Masseria hit. He was not, but at a different meeting that day with some of Masseria strong supporters and waited till the deed was done before he informed them of what took place.