Dmitry and Natalia Baksheevy - Russian couple whose "crimes" came to light after the husband's lost mobile phone containing pictures of him with human remains were discovered by road workers

Thing is, they were only ever convicted of one murder. Everything else is rumors and speculation. Some of it seems plausible, or at least disprovable, but some of it (like the idea that they supplied canned human meat to local schools) sounds exactly like the type of shit someone would make up when trying to sensationalize this story to tell with a bottle of liquor around a campfire