Canadian journalist Greg Felton, author of The Host and the Parasite, writes: “A media narrative of a mass shooting generates quasi-religious loyalty for three main reasons. First, it gives people what they want: a patsy and moral reassurance. Once the patsy is identified and either killed or captured, the narrative then acts as a form of catharsis by providing closure, commiseration and reassurance. People accept it because they want to. “Second, a media narrative is championed by political interests that ‘decouple’ the narrative from its putative cause so that it takes on a life of its own. The…