The guy who went on a killing spree was a young polish jew who grew up a few blocks away from where i lived in brooklyn. His name is Maksim gelman.
Anyway, heres a story supporting the 2nd amendment based on the nypd's policy that it isnt their duty to protect citizens from attacks.*
So WHO then is responsible for your safety? The obvious answer is you are. You are ultimately responsible for your own safety. Do not rely on the police to help you.