How sad! I for one do not want to see people committing suicide as a way to advocate for (or against) gay rights. Gay people have a higher rate of suicide as it is, and that is something that we want to prevent. Plus, imagine if it went the other way, and a homophobic priest killed himself to protest gay marriage. It reminds me of a self-radicalized suicide bomber, except that he was the only victim.
If I knew something like this could happen, I would have wanted to intervene and stop him before he doused himself in flames. There are better ways to send an LGBT-supportive message. As it is, the tide is changing fast. I just got married to my husband in an Episcopal church. There are so many Christians who support gay marriage, and I think most of them would be horrified to hear of this suicide. I think his decision may have been a result of deep psychological issues.
What's perhaps the worst part is that this doesn't seem likely to make homophobic people support gay rights. It's just not the answer, and, from a religious perspective, it goes against God's teachings. Martyrs don't willingly kill themselves. They stand up to persecution and are murdered.
This is just very tragic. I feel deeply sad for him, his family and his followers.