I recall that in school we saw a video on a TV set narrated by him. The video was on Aztecs if I remember properly (or was it Incas). Fitting since he was Mexican himself. They (Aztecs) were really cannibals. Some writers are leaving that fact largely in their literature on the Aztecs. Like Caroline Dodds Pennock in her book Our Savage Shores. I do not recall if Quinn mentioned cannibalism among Aztecs or not. A long document on the true realism of Aztec cannibalism can be found in Stephanie Zink's work : "Cannibalism and human sacrifice".