Well, if it's based on a true story, there could be a lot of elements to it. Maybe the blue - eyed butcher was a serial killer who used his profession as a cover - up. He could have targeted certain victims in a particular area. There might have been an investigation that uncovered his deeds, which led to his capture. But again, this is all speculation without more context.
The 'blue - eyed butcher based on true story' could potentially be a very interesting and disturbing tale. In real - life crime stories, there are often motives like revenge, mental illness, or power that drive the perpetrator. If the butcher was the culprit, perhaps he had access to sharp tools through his work, which made it easier for him to carry out his crimes. There could also be a backstory about his life that led him to commit such acts, like a difficult childhood or a recent traumatic event.