I'd be curious to see the stats for those inflicted with aids (i.e., how they got it ... shared/dirty needles, homosexual activity, or hetero sex with someone who already had it by other means).
Nevertheless, why were you "right" to tell him that? If he didn't believe it, who's to say you had that right? To say that because he was homosexual and got aids and that's why he died is pretty harsh and assumptive. I've heard lots of stories about people who are hetero, live a decent life, work, and die the day after they retire. When it's your time, it's your time ... and since "God has a plan" why would you try to alter his plan?