Dashiell Hammett,
Slippery Fingers
(1923)
“ Clane had been blackmailing Grover—I didn’t have a single doubt of that—and I didn’t think he had been very far away when Grover was killed. That woman alibi of his sounded all wrong!But the bloody finger-prints were not Clane’s—unless the police identification bureau had pulled an awful boner—and the man who had left the prints was the bird I was setting my cap for. Clane had let three days pass between the murder and his appearance at headquarters. The natural explanation for that would be that his partner, the actual murderer, had needed nearly that much time to put himself in the clear. ”
