Complex sentence: He sensed trouble and soon went into hiding when the Mafia War broke out, during which time he narrowly escaped death during an ambush by a Corleonesi hitman, Michele's nephew Pino Greco.
Split into simpler sentences: He sensed trouble and soon went into hiding when the Mafia War broke out. He narrowly escaped death during an ambush by a Corleonesi hitman, Michele's nephew Pino Greco.