There's a kernel of truth here, but you have to be careful about comparing _numbers_ of white/black people killed/jailed. You need to look at the per-capita (percentage) killed or jailed. There are way more "white" people so of course there are more of them killed/jailed/whatever! But when you look at the percentage then you see the injustice. "The country is about 63 percent white and 12 percent black... death rate due to legal intervention was more than three times higher for blacks than for whites in the period from 1988 to 1997."

Source: http://www.politifact.com/punditfact/statements/2014/aug/21/...