It's very sad, and I'm glad that you and your partner will be there for Juan, and him for you, even if his family cannot accept that very important part of his life, even now he's gone.
I hope this doesn't sound innappropriate, but I'd like to share a little about my parents. I was always petrified of telling my parents that I was gay. They are very strict, fundamentalist christians, and I really didn't think they'd be able to cope with having an evil, going-to-hell, sodomite son. My biggest problem with it was that I can't lie to my parents, as honesty has always been one of the strongest binds in our family.
I got around it by avoiding questions and not lying, but sometimes having to do that by saying nothing at all. I realised that I was dancing around the issue, and was in principle lying.
My other big concern was what would happen to me in the case of a serious accident, as I'd want the 3 people I trusted the most to make the right decisions, namely my parents and my partner. I'd been through my partner being in a serious car crash, and almost dying, and remember how uncomfortable and awkward it had been meeting his parents for the first time in the hospital.
So I bit the bullet and came out to my parents. I know it was probably the hardest thing they'd ever have to hear, and now, nearly 3 years later, they still struggle with the "christian" aspect to it. However, I wasn't thrown out of the family, or treated with contempt. They didn't feel they needed to invent a fake girlfriend. If they felt it was somebody's business that they know, they'll tell them. If it's none of their damn business, they say nothing.
After I'd told them, I asked them why they hadn't done any of things I'd expected them too. Mum smiled, and told me that I was still their son, and I'd shown them that by telling them the truth, not because I had to, cos I could have hidden it so easily, with me living in N Ireland, and them living in England. I'd told them because I couldn't stand lying to them, and that was all that mattered to them. She said they'd known I was hiding something, and it was hurting them that it was something so bad I couldn't tell them, but now they knew what it was, they'd be able to deal with it.
Our parents are the most difficult people we ever have to come out to, but they're also the most important. It makes my heart break to hear of families who hold their "public image" higher than having their children feel that they can be honest to them. It's a scary thing to do, mostly because in a sense, you're too often waiting to find out just how much your parents love you. My parents shocked me in their ability to put their beliefs aside, and I'm ashamed that I ever doubted their love. I truely pray that more and more of my gay and bi brothers and sisters around the world can learn that same lesson, because life is a happier and more honest place now.
I pray this gives some hope to those who are contemplating telling their parents. It's so sad how many parents do shun their own flesh and blood, because of something they can't change or help. Don't give up hope though, because sometimes your parents can show you that right out of nowhere, they can turn everything upside down and surprise the hell out of you, in a very good way.
Stronzo, my love to you and your family in this difficult time. I applaud you for wanting to tell people about your friend's life, to show the things he wanted to be seen, and say the things he wanted to be heard.