Erle Stanley Gardner 
The D.A. Draws a Circle 

The murdered man had been shot – twice. Either bullet could have caused the death. D.A. Doug Selby had both the bullets and one of the guns. On that gun were the fingerprints of Pete Ribber, a known criminal. The other bullet was from a different – and missing – gun. Which bullet had caused the death? That was the D.A.’s problem. Because there’s no law against firing a bullet into a corpse …