Is this who we are thinking about, if so wrong boy?
http://www.tibet.ca/en/wtnarchive/1996/3/23_2.html
That's who I was thinking about-ages are close enough without birthdates to confirm, and a new name could have been given, aaaaaaaaand I note in your link that a 6 year old had already turned up missing. hmmmmmmmmmmmmmm