Do you think a lot of the people who disappear in national parks are suicides?

My best friend killed himself at Glacier national park in 2012. I suspect he just wanted to be alone, he ran a generator to gas himself(just like L. Ron Hubbard's son)

He grew up as a Scientologist, his parents started the chapter in Los Angeles. He was outcast from the church and was deemed an enemy. After his death his family all appeared out of nowhere, and although he had written a note giving me all his possessions I just let the family take it all away.

He wasn't the only sibling in his family to commit suicide either, his sister had hung herself in order to escape the pain she was living in.

I 100% blame the church for his death, he didn't know any different as he was raised up in their ways. Once banned he never could adapt to the real world.

Anyhow, sorry to ramble on... But every time I hear a story about national parks and suicide it pops into my head.