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
Seider Meyer of Kotovsky's murder are convinced that Seyder was not the only and not the most important criminal, but acted under someone's leadership. The materials about the murder of Kotovsky were classified. Sayder's friendship with Mishka Yaponchik and Kotovsky's murder, as an act of revenge, became one of the plot lines of the series "The Life and Adventures of Mishka Yaponchik". The role of Meier Zayder (as in the series appears under the name Izya Majorchik) was performed by Alexey Filimonov. Seider Meyer Meyer Zayder (? – 1930) – head of the protection of the Peregonovsky sugar factory in 1922–1925, known