There are parallels to these heavy-hearted documentaries. One is about a misguided Puerto Rican welterweight beating a young Irishman with illegal gloves in a bout (and subsequent demise of both fighters) and the other is about a Japanese town secretly killing thousands of dolphins a year for mercury-laden, toxic meat. yikes. Both are somber yet enlightening stories.
(Thanks to Xavie for tipping me off to these dismal stories.)