In a way you are right. I did not always have contact with Pat after high school, or much after i got kicked out of high school for that matter. I was friends with him in middle school really, when people aren't really sure what their sexual preferance is anyway, which serves for the fact that i would not really know about his sexual identity struggle.
It's really one of those things that when you see that an old friend died, you are going to become somber, i don't care who you are, its going to happen. Do i know that his sexual identity was the reason for this? No, i don't. When he came out i know his parents purchased objects for him or something to that effect, but maybe that is not the kind of support he was looking for.
If anything I would say that there is a chance that he did it because of his sexual identity. Read the obituary, there was nothing wrong with the kid. Absolutely nothing wrong. Just a kid who liked slasher films and got me to watch them when i was younger.
But this is not the debate that one should have at a time like this.