“Other swimmers noticed the gentleman in the water, and they were actually waving and signaling for the nearby jet boats to come assist them,” Burke said.
He added: “We did have life support on the boats that were monitoring the swim course. There’s medical staff on those boats, so if the guy had a situation in the water, he’s getting the best medical care. ...” [Link]
UPDATE: I am still rattled about this. This is happening more and more and it is distressing. I was a triathlete in my 20's but I never mastered any of the three sports involved. I was always too busy going back and forth from one event to the other, doing "bricks" and ultimately to tired to concentrate on technique for any of the events, etc. etc. Ultimately I was just surviving and consequently I felt rushed and I was injured a lot.
I think if you took a poll among triathletes asking them what is their weakest event, I bet more than two-thirds would say the swim. Hence, if you want to be an effective triathlete, you MUST master your weakest event. In fact you should be in such good shape before an event like this that you would feel the need to swim 500 yards or so before the race.