Murder at the vicarage #972826

It is difficult to know quite where to begin this story, but I have fixed my choice on a certain Wednesday at luncheon at the Vicarage. The conversation, though in the main irrelevant to the matter in hand, yet contained one or two suggestive incidents which influenced later developments.
I had just finished carving some boiled beef (remarkably tough by the way), and on resuming my seat I remarked, in a spirit most unbecoming to my cloth, that anyone who murdered Colonel Protheroe would be doing the world at large a service.
My young nephew, Dennis, said instantly:
"That'll be remembered against you when the old boy is found bathed in blood. Mary will give evidence, won't you, Mary? And describe how you brandished the carving knife in a vindictive manner."