Gerald Chia's accident

Went to his funeral today and felt sad about it! Although i don't really know him very well in person, we were in the same class(i retained).... This is so shocking and unexpected to me!! On thw journey to his funeral, i was wondering what cause his death and ask my friend(who informed me) abt what actually happened and she tell me she has no idea too....

I met a number of schoolmates at the wake, in the meanwhile a girl working in amber 21 kept calling and sms me non-stop regarding a group me and my friend created in facebook 'anti-amber'!
I told her i'm in a funeral n has no mood to discuss over the matter yet she still kept sms-ing!! Very irritating and frustrated! Anyway i saw newspaper on the table and read the news about the incident....

This is so confusing! I read 3 newspaper and all stories are different!
NewPaper: supervisor found the line attached to him came loose..
StraitsTime: something wrong with the oxygen tank etc...
Chinese XinMing: flushed away by waves...

So what is the true cause of it? This ex-classmate Gerald was known to be good-looking back in school-times.. Now, from friends who saw him recently before the accident said he's become more matured and from what i learned from my friends, He mastered in a number of different fields and definetly has a great future... This 2nd assignment in commercial diving that cause his death is such a tragic seriously! I really feel emotional afterall although i wasn't close to him at all!