“designs”: “Turning to murder is a stretch.”
True, it would be a stretch for the GB to go against the “superior authorities” and sanction JWs to murder their “enemies” (“apostates”) at this time. However, the OP was hypothesizing what JWs WOULD do IF ordered to by the GB.
Considering some of the earlier WT quotes, it would seem that the GB would be titillated and pretty much salivating at the idea of being able to carry out their own fundamentalist capital punishment IF they were to somehow be allowed to – either because of a change to a new set of “superior authorities” or because of the same ones operating under a vastly different set of new and emerging policies due to some extremely disastrous upset in society, such as a nuclear war or natural disaster (asteroid impact, major volcanic ground eruption in Yellowstone National Park, mega-tsunami from sudden landslide on La Palma Island, electromagnetic solar corona discharge, super zombie-like viral outbreak, major earthquake from Rosie O’Donnell falling off her chair, etc.).
And, of course, if the WT’s whole Armageddon and new system thing was actually true and the whole world was to be ruled over by the WTS, then I would imagine it would be a real stretch for them not to use murder against anyone not playing by the rules. Those 250,000 or so people every year, not to mention the 50,000 or more between the years 1961 and 2012, who have suffered premature death as a direct result of WTS’ blood policy would be just but a taste of what it would be like in that scenario!