In America, why do you think blacks commit 52% of homicides when they are 13% of the population?

I personally think it is cultural, the link below describes it in a pretty fair way and I agree with a lot of it.

https://www.channel4.com/news/factcheck/factcheck-black-americans-commit-crime
Social reasons (you think it is culture, poverty, etc)
Biological (you're a racist)
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For the little bitch who thought it was necessary to block me..

https://pbs.twimg.com/media/ErQW_H3VQAktxIj.jpg

You guys can message me if you want to know who the little bitches, I can't see here because of the website's policy.
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*bitch is
In America, why do you think blacks commit 52% of homicides when they are 13% of the population?
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