Oldsoldier, I would agree with you totally about the fault of the operator, given the premise of the story as related to us. They did not do their job, and they are negligent in their duty, as well as most likely their supervisor would be. Based on the information provided to date, I find their actions reprehensible, and would argue that they deserve the full brunt of whatever the law allows as penitence.

However, I vehemently disagree with the exoneration of the kid. It was his actions directly that put his life in peril, and regardless of whatever came afterwards by others, he alone bears the fullest measure of fault for his demise. His culpability cannot be in question, nor can it be mitigated by the negligence of others, for his negligence is the primary cause, and his negligence fomented the entire calamity. His friends surely share in the blame as well, as I would suspect his parents ought to. By his own actions, he placed himself in the bad situation. No one else put him there, he did it of his own accord and under no duress, and if all other factors are reduced from this event, it still comes down to his choice of doing what he did that generates the cause.

That does not excuse the actions of any/everyone else involved in this tragedy. Likewise he cannot be any less culpable because of the failings of others. There is no indication in this story that the young man was in any way physically or mentally impaired, and he was of suitable age to at least have been able to reason on his own enough to realize the risks he was taking.

I would point a finger at everyone else involved because they survived, and because it brings to public attention the need for corrective action. However, wagging the finger itself is not enough.
_________________________
The ultimate result of shielding men from the effects of folly is to fill the world with fools.
-- Herbert Spencer, English Philosopher (1820-1903)