Based on [a recent news item](http://www.cnn.com/2013/05/06/us/boston-up-to-speed/index.html?hpt=hp_c2) wherein cemeteries have been refusing to inter the body of one of the (alleged) Boston bombers, I am curious whether a Jewish cemetery's operators are allowed to refuse to bury a Jew's body that is brought to them, and if so on what grounds? Meaning is it based on the fact that the person was a sinner, and if so which sins warrant this response? Are there other valid reasons?