cinder4320:
Not all fatalities are CAUSED by bad buddies but perhaps fatalities could be avoided with good ones
It amazes me how people always have to find somebody to blame... it was the captain of the boat, he should have been a SCUBA police officer and... it was the buddy, he should have... it was the other dive group, they should have... it was the DM, she should have... it was the dive shop, they should have...
Perhaps I am misreading your statement, but within the context of your original post, and this thread, it appears to me that you are suggesting that had the brother/dive buddy surfaced with his partner, then PERHAPS nothing bad would have happened. I find such an opinion to be both shallow and near sighted.
Imagine a diver that prepares to surface, but hits the low pressure inflator instead of the purge button on the BCD. How, exactly, is a dive buddy, good or bad, going to change the outcome of this hypothetical situtation?
Sometimes accidents happen and sometimes people die from accidents. I don't know the specifics of this accident, but my guess (yes, speculation) is that there was absolutely nothing the dive buddy, or anybody else, other than the victim, could have done to prevent the accident from happening.
As always, my heart, and prayers, go out to the family and friends of those involved in the accident.