Serial Killer in NYC targeting Middle Eastern shopkeepers?

The NYPD is searching for a man that they say is responsible for at least 3 murders. All victims have been reported as being of Middle Eastern descent and older in age. Police say that the same gun was used in all 3 murders, and though they wont outright say it, and there are inconsistencies, this could be a serial killer. No cause has been yet established. For more information check out this article on webpronews.