Those liberals crack me up. A black man murders a white man, and then complains that the law that convicts him is racist!
The usual claim is that killers of whites are more likely to get the death penalty than killers of blacks. If anybody wanted to crunch the numbers, I suspect it would be found that this disparity is related to the likelihood that black victims are less likely to be truly "innocent victims" than are white victims. Juries are less likely to impose the death penalty when one thug kills another than when a thug kills an innocent person.
The claim also requires ignoring the statistical fact that white killers are slightly more likely to get the death penalty than are black killers.