Scott Horton's interview with the author and chief researcher of the Seton Hall report contains this amazing interchange:

Q: One of the prisoners, Yassar Talal Al Zahrani, had been seized as a minor and survived the prison riot that occurred at the Qali Jangi Prison near Mazar-i-Sharif. When his body was turned over for burial, an independent medical examination was arranged which found that the heart, kidneys and throat had all been removed from his corpse. The medical examiner noted that the removal of the throat in particular was highly irregular, and made an independent assessment impossible. Do you have any sense why U.S. military pathologists removed his internal organs and throat? Is this discussed in the report?

A: No.

The medical examiner found that all three of the corpses had rags stuffed down their throats.