Says he was swapped at birth and is here on Earth for service.

http://crimsondreams.net/

...I was adopted [at a very early age] and I do remember my [biological] parents.   The people who adopted me were nice enough and certainly cared for me and did all in their power and understanding to make me comfortable.    However I had a very difficult time living on Earth as a child, until I was well into my teens.    The gravity of this planet (Earth) was too strong for my inner organs and I came close to dying many times during the first 16 years of my life here...