::What denomination/organization/etc are the people you are referring to from?  Do you mean "kill" literally or metaphorically (as in silence/stop from talking)?  Did these conversations take place somewhere other than America?  In my experience (southeastern United States), I'm having a hard time imagining very many people claiming to be Christians and wanting to kill someone.  I suppose there are some white supremacist organizations that advocate such nonsense and some of them do claim to be based in Christianity, but I can't think of anyone else.  I disagree with Pat Robertson on a number of levels (happy to discuss on user talk pages as it is getting well outside the topic) but I can't imagine even him or any of his followers advocating killing someone.  I have an aunt that goes to the Pat Robertson and Benny Hinn nonsense all the time and she has never threatened me or anyone else, even when I have comfronted her about the errancy of her position.