Yeah, but...
Not only is denying athletes access to water during conditioning dangerous, it's dumb from a strength and conditioning standpoint. It doesn't provide any training benefit.
If indeed the guy was denied access to water, then yeah, there's definitely a case, and yeah, the coach is a complete dumbass.
This:
...isn't that big a deal, IMO. I used to ref soccer, and if we had a kid suffer from heat prostration, I wouldn't call the freaking paramedics. You put him in the shade, make him drink lots of water, and throw some wet wash cloths on his knees and neck.
Better hope something like this doesn't happen in Georgia. The Supreme Court has ruled that schools are under NO duty to call 911. Unless you can find a memorandum, policy, etc from the school board specifically stating that teachers/coaches SHALL call, you lose.
I represent a kid who OD'ed unintentionally (the drug was mixed into gatorade & he unwittingly consumed it), the school nurse is quoted as saying "no need to call 911, he has good color in his lips". She was ignoring the fact that he was in cardiac arrest(but golly he had good color!).