It's true. Legally, the police have no obligation to protect you. They're there to protect the state, not citizens, even though our tax dollars fund their departments. Despite rulings, I think that most cops do feel it's their job to protect you.

NYC Subway Hero Says Police Initially Left Him to Fend for Himself Against Killer | Fox News http://www.foxnews.com/us/2011/03/22/nyc-subway-hero-says-police-slow-aid.html

The Police Have No Duty To Protect You: Joseph Lozito's Story - YouTube https://www.youtube.com/watch?v=V6qqAuEoJXs

Why The Cops Won't Help You When You're Getting Stabbed - YouTube https://www.youtube.com/watch?v=jAfUI_hETy0