There is a tremendous amount of distortion out there regarding the Black Panther Party. Learning about the BPP from school textbooks and other capitalist mouthpieces is little different than going to a creationist to learn about evolution. I'm not an expert on the BPP myself, I've concerned myself moreso with studying the movements going on in the world now that were in part inspired by the BPP, in particular the revolutionary movement in India (links at bottom) and how we can put a BPP-like party (completely minus the nationalism, enhanced and enriched in many ways) back on the map here. Here's some good stuff on the BPP:
40th anniversary of the assassination of Fred Hampton:
History of the BPP:
Seems to open to negative interpretation.