Michael Jackson's Trial Unfair?

I was watching C-SPAN Saturday night. There was a program about Black Unity.
Jesse Jackson suggested something was unfair about not having black people on the jury in Michael Jackson's trial.
"Can you imagine if Robert Blake's murder trial only had black people on the jury?" Jackson asked.

I could imagine it. Am I naive?

Are we to believe, as Jackson suggests, that Black people are only going to get a fair trial by having Black jurors participate in deliberating their guilt or innocence?
Is it proper then to assume that Black people would be incapable of making an unbiased verdict on a white person?
Wouldn't that logic require that for true justice Black defendants only have Black juries and White defendants only have White jurors?