As of July of 2016 African Americans were the largest racial minority, amounting to an estimated 12.7%
In the same year the FBI figures for homicides nationwide shows that, where the race of the offender was known, this was the break down for homicides involving blacks and whites as either victims or perpetrators.
White victim total = 3,499
Pepetrator White = 2,854
Perpetrator Black = 533
Black or African American victim total = 2,870
Perpetrator White =243
Pepetrator Black = 2,570
So what can we glean from these figures?
For whites just over 81.5% of murders were committed by other whites
and just over 15. 2‰ were committed by blacks
For Black's the figures were just over 8.46%
murded by whites
and over 89.5‰ for deaths at the hands of other blacks.
And let's look at the absolute figures..
Black's killed 533 whites when they made up 12.7‰ of the population
And whites killed 243 blacks when they made up 76.9‰ of the population
So not only did whites kill less blacks then the other way around in overall numbers they did so whilst having over six times as many people in the country!
So you could express the racial disparity in interracial homicides in the USA,
on a per capita basis, between blacks and whites as being in the region of over a factor of twelve in favour of the blacks much more frequently being the perpetrators in interacial murders between the two groups (just over six times as many whites as blacks in total and in absolute figures blacks kill over twice as many whites as vice versa)