Not sure why I got a downvote. It’s a statistical fact.
https://en.wikipedia.org/wiki/Race_and_crime_in_the_United_States
According to the US Department of Justice, African Americans accounted for 52.5% of all homicide offenders from 1980 to 2008, with Whites 45.3% and "Other" 2.2%. The offending rate for African Americans was almost 8 times higher than Whites, and the victim rate 6 times higher. Most homicides were intraracial, with 84% of White victims killed by Whites, and 93% of African American victims were killed by African Americans.[49][50][51]
In 2013, African Americans accounted for 52.2% of all murder arrests, with Whites 45.3% and Asians/Native Americans 2.5%. Of the above, 21.7% were Hispanic.[52][53]
Blacks account for the majority of gun homicide victims/arrestees in the US while Whites account for the vast majority of non-gun homicide victims/arrestees. Of the gun murder victims in the United States between 2007–2016, 57% were black, 40.6% white (including Hispanic), 1.35% Asian, 0.98% unknown race and 0.48% Native American.
Non-gun homicides represented about 30% of total murders in the time period. Blacks were still overrepresented although only by about 2.5x their share of the general population.[54] Of the non-gun murder victims in the United States between 2007–2016, 61.5% were white (including Hispanic), 32.9% black, 2.29% Asian, 1.89% unknown race and 1.43% Native American.[55]
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Anyhow I don’t think much of it has anything to do with genetics......Neanderthal or otherwise.