How many slayings over the years have been called “jigsaw murders”? Plenty. All a killer has to do is cut up the body and “jigsaw” becomes the go-to nickname. The particular jigsaw murders referred to on the cover of this August 1947 True Police Cases are ones committed in Lancashire, England during the late 1930s. A doctor named Buktyar Rustomji Ratanji Hakim—“Buck” for short, and aka Buck Ruxton—strangled his wife Isabella. And in a sad but classic case of wrong-place-wrong-time, a maid who had the misfortune of witnessing the event was also strangled.

But Ruxton wasn’t finished. He yanked out the women’s teeth, cut off their faces, chopped up their bodies, and disposed of the pieces in a stream 100 miles from his home. The guy was really using his head. Other than needing to explain the absence of his wife and maid, he had to feel pretty confident about going undetected. But he had wrapped some of the remains in newspaper—a newspaper sold only in his area. That helped police zero in. And when they noted the precision of the butchery, they immediately narrowed their search to medical professionals. Needless to say, there weren’t too many doctors in the Lancashire area whose wives were suddenly missing.

Because the police used newly developed forensic techniques to help solve the crime—for instance, superimposing photos of Isabella’s face over the decomposed head to aid identification—the case generated a lot of attention. True Police Cases scribe Alan Hynd wasn’t the only journalist with an interest. Many true crime writers wrote about it, and the story eventually became an entire book by T.F. Potter in 1984 called The Deadly Dr. Ruxton: How They Caught a Lancashire Double Killer. All these years later, of the many jigsaw murderers, Buck Ruxton remains among the most famous.