The blood on the floor came from Henrietta Drudge! Perhaps the worm had finally turned. I confronted her with the evidence. She claimed that she had cut herself the day before the murder, while chopping vegetables for a stew. Evidence of clumsiness, maybe, but not enough to pin the murder on her.
The next piece of evidence was a glass left on the kitchen counter. Maybe the crook had gotten a tad thirsty while he was committing his atrocious crime! No fingerprints on it, but there was enough saliva left on the rim to do STR analysis.
