In the New York City of the 1930s, murder was big business. And the best killers in the industry were Murder Inc., a ring of murderers-for-hire working as mob enforcers who, in less than 10 years, killed an estimated 1,000 people.

In the New York City of the 1930s, murder was big business. And the best killers in the industry were Murder Inc., a ring of murderers-for-hire working as mob enforcers who, in less than 10 years, killed an estimated 1,000 people.