Nothing is more tempting, or intellectually hazardous, than to draw broad conclusions from a single isolated case. Indeed, whole clusters of unusual incidents may mislead people into thinking that they represent a serious trend, when in fact they represent nothing more than the operation of chance in human affairs. I was once asked to take part in an official inquiry into several untoward incidents (murders, actually) that took place in what seemed to be an unusually short period of time in an unusually small geographically area. A statistician subsequently proved that the assumption behind the inquiry, namely that there was an anomaly to be explained, was false.
Nevertheless, it is only natural that we should see signs of the times in very unusual incidents and try to derive wider meaning from them. So it is with the case of Vester Lee Flanagan, the former television journalist who broadcast under the name of Bryce Williams, and who shot two erstwhile colleagues dead and injured another while they were broadcasting, then committing suicide by shooting himself. We feel instinctively that such extraordinary conduct must be symbolic of somethings: not merely an event, but a signal.