three boys led by scout masters harold crompton and andrew schmidt who noticed that the heat was getting to the boys at 1:00 when the hike was half complete. they were not heating much because they were extremely hot crompton told police. in his own handwriting he described the ordeal that began at mile 15. he seemed to seem dizzy. we had him sit down. after 20 minutes he got worse. he seemed to be choking. i turned him on his side. he vomited. i cleared his mouth. he stopped breathing. an hour and a half after stopping the hike, he placed a call on his cell phone. >> 911, what is the address of your emergency? >> the florida trail. we're hiking in the everglades. got a guy, he's not breathing. >> the guy's not breathing? >> yes sir. >> reporter: crompton had been performing cpr on him for 45 minutes by the time the rescue helicopter reached him. by then he had no pulse. he was air-lifted out but half an hour later, he was declared dead. >> their son dying during a hike on a hot day in the everglades. >> now a mother and father -- >> reporter: this is how the community learned about his