No, thanks to Desmond. The lightning rod? Desmond saw Charlie electrocuted. He drowned going after Claire; Desmond went in himself so Charlie wouldn't have to go in.
"I've tried, brother. I've tried twice to save you, but the universe has a way of course correcting, and I can't stop it forever." Desmond, you magnificent bastard, are you saying what I think you're saying? "I'm sorry. I'm sorry, because no matter what I try to do... you're going to die, Charlie."
Santa did get my letter!