I think you proved his point. ;) He's talking about the Mozilla browser, the precursor to Firefox. (Well actually, Firefox was named Phoenix before it became Firefox.)
One could say that the more important question is: Why are there armed persons at the location in question?
If the police had not been there at all, or had been issued a standard warrant, the the "who shot first" issue is not a question that needs to be asked.
Newsblur kind-of has this. You can "Share to your Blurblog," but I don't see a way to have multiple Blurblogs.
You can also tag stories and each tag can have a RSS feed that others to subscribe to, but I don't think there is a web page to send people to for your taggged stories.