Every family has an origin story – for author Jo Piazza (Under the Influence, Wilder) her family's is a murder mystery.  For as long as she can remember the Piazzas have told the story of their Sicilian roots going back over a hundred years ago: one by one the sons and then their father sailed off to America to carve out a better life. Their mother, Lorenza Marsala was supposed to join them – but she never made it. She was murdered by the Sicilian mafia, they said.  The truth of what happened has morphed like a game of telephone through the genera...