I haven't been able to check that one yet, but if your misleading and false statements in Coleman and Tafero are any indication, the whole picture would be quite different. I wouldn't believe Blackmun. He was known to uncritically repeat things in defense briefs. The witness against him, the actual killer, I believe, was hardly credible. He confessed and recanted many times.
Cases being tried today get thorough testing.
Your last statement is a patent falsehood. Anyone can look it up at 952 f2d 1282, 1287. It was a statement that Tafero, not Jacobs, fired all the shots. Rhodes was released on parole. He disappeared and is a fugitive at present.