broach the subject. soledad o'brien introduces us to one man who is daring to try. >> reporter: two illnesses threaten jeffrey gavin. his church knows only about one. >> i have what's called morphan syndrome. that makes me very tall. it -- i'm constantly in pain. ♪ >> reporter: he feels compelled to tell his pastor, buster sories, the rest of his story. >> i'm living with hiv. >> in the name of jesus -- >> reporter: j. gavin, as his friends know him, found out he was hiv positive four years ago. he's never mentioned it in his church. keeping that kind of secret is common in the african-american community. >> if the average person in this church knew how many people they interacted with in this church who were hiv positive, it -- it would be scandalous. >> aids walk! >> reporter: the cdc says it's