Manhattan Italian emigration. Lucky Luciano established Cosa Nostra in Manhattan, forming alliances with other criminal enterprises, including the Jewish mob, led by Meyer Lansky, the leading Jewish gangster of that period. From 1920–1933, Prohibition helped create a thriving black market in liquor, upon which the Mafia was quick to capitalize. As in the whole of New York City, Manhattan experienced a sharp increase in crime during the 1960s and 1970s. Since 1990, crime in Manhattan has plummeted in all categories tracked by the CompStat profile. A borough that saw 503 murders in 1990 has seen a drop of nearly 88% to
Meyer Lansky to Italy, and had to travel to Havana with a false passport. Lansky shared with them his vision of a new Havana, profitable for those willing to invest the right sum of money. According to Luciano, the only attendee who ever recounted the events in any detail, he confirmed that he was appointed as kingpin for the mob, to rule from Cuba until such time as he could find a legitimate way back into the US. Entertainment at the conference was provided by, among others, Frank Sinatra who flew down to Cuba with his friends, the Fischetti brothers. In 1952,