It's actually much smaller than that. Violent crime drops off a cliff past the age of 40 in men. It's closer to 3% committing 52% (I don't understand why you chose 60, but 52 is fine as it makes no significant difference for our purposes here). And even then, it's actually the minority of black men between the ages of 14-40 that commit any violent crime. And a lot of that is repeat offenders.
Truth is you're looking at probably closer to less than 1% of the population that commits 52% of all murders.
But that's actually not surprising. The criminal class in almost every country is very small. It is universally true that criminals commit many crimes in their careers, and this factor is why mass incarceration and mass distribution of firearms has an effect on crime. If it's too risky to commit many crimes, even if not many in the criminal class get shot, then crime goes down. If you mass arrest most of the criminals, then the crime also collapses (and it normally doesn't take that many arrests), and if some of the criminals get shot by their victims: those victims didn't prevent one crime, they prevented hundreds.
I wouldn't be surprised if 95% of all violent crime in most countries were committed by no more than 3% of the entire population in final tally.
It's actually much smaller than that. Violent crime drops off a cliff past the age of 40 in men. It's closer to 3% committing 52% (I don't understand why you chose 60, but 52 is fine as it makes no significant difference for our purposes here). And even then, it's actually the minority of black men between the ages of 14-40 that commit any violent crime. And a lot of that is repeat offenders.
Truth is you're looking at probably closer to less than 1% of the population that commits 52% of all murders.
But that's actually not surprising. The criminal class in almost every country is very small. It is universally true that criminals commit many crimes in their careers, and this factor is why mass incarceration and mass distribution of firearms has an effect on crime. If it's too risky to commit many crimes, even if not many in the criminal class get shot, then crime goes down. If you mass arrest most of the criminals, then the crime also collapses (and it normally doesn't take that many arrests), and if some of the criminals get shot by their victims: those victims didn't prevent one crime, they prevented hundreds.
I wouldn't be surprised if 95% of all violent crime in most countries were committed by no more than 3% of the entire population in final tally.