because it’s insanely difficult to hide multiple killings.
Which is why serial killers have tended to pick on the lowest members of society. Gay men and prostitutes just going off of Dahlmer and Jack the Ripper come to mind, but it’s a common theme. Less common is something like BTK going after whole families and he nearly got away with it but for a stupid mistake, I think, with metadata on a floppy disk. But we’re in agreement that it’s hard to pull off I just think the numbers would be larger than we’d expect etc etc.