"Looks Like a Planted Clue"

"Murderer's Clock."
By Ray Cummings (1887-1957).
First appearance: Liberty, January 19, 1935.
Short short short story (1 page).
Online at Archive.org (HERE).

"There was a low choking gurgling groan as the old man rose out of his chair, spun on buckling legs, and fell on his back, with the knife handle standing like a little cross from his chest where the blood was welling with a crimson stain."

It goes without saying that murderers defy the law, but in order to catch this killer a clever cop will himself have to defy the law—of gravity . . .

Resource:
- We last made contact with Ray Cummings (HERE).