The Kitty Genovese case took place nearly fourty years ago at a time when most southern states still required black people to ride in the back of the bus and drink from seperate water fountains. Obviously, a lot can change in 40 years, including the crime rates in various cities and the way people respond to crime. Based upon the most recent FBI statistics, you have a much greater chance of becoming the victim of a violent crime in Dallas/Fort Worth, Mobile, New Orleans, Jacksonville, Houston, Memphis, Miami, Atlanta, Norfolk, Richmond, Birmingham, Jackson, Phoenix, Charlotte, and just about any other city in the "friendly" south, than you do in "mean" cities like New York and Boston.
Right, I'm sure it's as different now in the South as it is in the North. After all, in the North they marched in federal troops to ensure that New Yorkers would call the police if dying women screamed. In the North, they passed laws to ensure that the police would be called if women were murdered in broad daylight. And I recall the National Association for the Advancement of Dying Women and federal judges making sure that every move by state governments that might remotely be fair to the living was shut down, to make sure that dying women had police protection. And gosh, I remember all the schoolbreak specials and societal pressure exerted on NYC to ensure that New Yorkers all know how shameful it is not to call the police for dying women, and how illegal it is not to call the police for dying women, and how evil New York is to not call the police for dying women.
Yes, things sure ought to be different in NYC by now, probably every bit as different as they are in the South.