Did depriving the Petitioner of his ability to confront and cross-examination the key evidence at his capital trial violate the Sixth, Eighth, and Fourteenth Amendments?

QUESTION PRESENTED In this capital case, the Tennessee courts permitted the State to introduce a transcript of prior testimony of its “primary witness” rather than presenting the living witness at trial. Did depriving the Petitioner of his ability to confront and cross-examination the key evidence at his capital trial violate the Sixth, Eighth, and Fourteenth Amendments? i