The article is mostly about demographic analysis of violent criminals, comparing groups of population by number of violent convictions they have: high (> 10 convictions), medium (3-10), low (1-2), or none. The title here is... not really what the article is about, but it feels like someone tried for a punchier title than "demographic analysis of violent criminals" and missed the mark completely. I'm not sure I can even call it clickbait, since the main reason why the 1% = 63% is brought up at all is a half-baked "why we should care about this demographic analysis" and not really explored any further.