If CWW dies, however unlikely, most of his statements will be used against MS under former testimony or statement against interest exceptions to the hearsay rule.
Statement Against Interest. A statement that:
(A) a reasonable person in the declarant’s position would have made only if the person believed it to be true because, when made, it was so contrary to the declarant’s proprietary or pecuniary inter- est or had so great a tendency to invalidate the declarant’s claim against someone else or to expose the declarant to civil or criminal liability; and
(B) is supported by corroborating circumstances that clearly indicate its trustworthiness, if it is offered in a criminal case as one that tends to expose the declarant to criminal liability.