It's also interesting that, although the story of Luciano being slapped by a camorrista in Italy is quite famous, but it's quite confusing who exactly was the one actually slapping him; almost every time I see this story, a different name is mentioned: Francesco Pirozzi, Vittorio Nappi, Pasquale Simonetti, to name a few.
even says that Gaetano Badalamenti had that man whacked by Salvatore Zaza, as late revenge for the insult against Luciano, according to Antonino Calderone, who doesn't specify a name though.
The versions of the event seem to be countless...
I don't believe Calderone really know what happened he may have heard some rumors Simonetti was maybe present as was Nappi but they were bosses themselves in 1950 a low level guy like Pirozzi seems more likely on orders of his boss Maisto.