I have this somewhere in my pile of old vhs videotapes. It's pretty well represented here I have to say but I'll look for the tape. I think the white guy died of a broken neck. I don't remember how the black guy died.
The video is not so great. Very quick unfortunately and accompanied by dumb dramatic music. Wish they had spent more time exploring the body and they don't explore the black guy or show his penis at all. The poor white guy is very small. The doc pulls back his foreskin which is interesting but you can hardly see his tiny head. I might be able to find the URL for you. Is it ok to post URLs and not pics?