murphy: christian thwaites then started his dive.uld later give a statement that between the anchor line and the wrecks he found something odd, shelley's fin, like this one, sticking up out of the sand. when he got closer to the wrecks, he found shelley herself lying on the ocean floor face up, eyes open, near one end of the boats. he quickly grabbed her and brought her to the surface. murphy: and then christian does come back and... david swain: well, he doesn't come back. he surfaces, screaming. murphy: what did you hear in his voice? were there words or alarm or noise... david swain: the word was "emergency." murphy: swain hopped in the dingy and sped over to him. david swain: and when i get close i do see that he's got another diver with him; and then as i get closer, i realize it's shelley. murphy: how much trouble was shelley in? david swain: the idea that she was unresponsive right away, that was a huge problem. murphy: christian and david say they both attempted cpr, but shelley's body did not respond. david, trained as an em