Your stats don’t tell the whole story. While blacks may indeed be about 13% of the population. And committing over 50% of violent crimes and murders, it must be understood that half of that 13% are women. Who commit very few violent crimes. Half of that are men over 30 again who commit fewer crimes.
The real shocking facts are that black teens from age 12 to age 30 are the ones committing most of the violent crimes and murders here in the US.
Yep, about 2% of the population commits over 50% of the violent crimes.