The tragic death of a 14 year old should heighten our caution when using a cell phone, or any electronic device, near water.
I read that, this morning. I haven't been able to stop thinking about it all day...
This is a terribly sad story and will be an awful burden for the family to cope with both now and in the coming years.
I believe there was mention of a charger being attached in one report. No doubt a full account will be available in due course.
In the case of Richard Bull in the UK last year there was a charger involved in his death and the authorities referred the case to Apple for review.
As I understand it and but could be wrong here, a GFI would not really help in cases like this--it would kick in too late.