The one witnessed incident that really caught my attention was the lack of continued CPR by David Swain after they were out of the water. I could almost understand that the shock of death at hand might have frozen him from continuing CPR but, according to the captain of the first boat on the scene, Swain stopped CPR and refused to let anyone else continue.
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My understanding is that Swain was a paramedic. For us medics who have actually done CPR most of us would tattoo "DNR" on our chests. CPR is not the panacea for all ailments that television suggests it is.
CPR can double the chance of survival for a cardiac arrest. However that only takes if from 5 percent to 10. Also, that statistic only goes for witnessed cardiac arrests when CPR administration begins almost immediately followed by the appropriate drug therapy within a very short time frame. Trauma arrests, stroke etc are so much lower as to negligible. You can't do effective CPR underwater. By the time Thwaites, who found her and brought her up, got her to the surface, assuming that was was more than about 3 minutes, it was already too late. Remember, this isn't cold water.
I'm not absolutely sure I would have wanted to do CPR either. If you believe him that he wasn't there and doesn't know what happened, then perhaps NOT continuing CPR was a reasonable choice coming from his assumed paramedic knowledge base.
Having done CPR many times in my life, I have some first hand understanding which is why I would have DNR tattooed on my chest. Every time I have administered CPR, I have felt that I was desecrating the dead. Being taught that when ribs break under your hands you must continue sounds fine in theory, in reality, well, that's a different matter. Law in our state says that in the absence of a DNR we MUST work the code. I've done it many times. The one and only time CPR actually brought a heartbeat back, the patient was already brain dead and lived a couple of days on life support. I was horrified that I had caused a heart to beat in a dead person. It was worse than ghoulish. If it were me or mine, I would ONLY consider CPR on a witnessed arrest.
Television teaches many untruths, especially in medicine. If a non medic who really believed CPR would make a difference had made this decision I would be more suspicious. That decision made by someone with the background and experience to know how miniscule the chances are is at least comprehensible.
Another thing I wondered about was his camera. IF he was shooting digital there is a great deal of information encoded in the .jpg files...included time and date. I wondered if anyone investigating the case ever looked at his camera to confirm or deny his claim that he went over to the reef to take photos?
I'm not saying he's innocent. I didn't investigate the case. I know as little as anyone else, but there are surely a lot of assumptions and unanswered questions. I'd sure like to see his attorney get a good investigator and look at computers, cameras and other possible evidence that has never been mentioned. I also think that failing to allow his psychologist to testify was legal error. The judge prefers an M.D.? A psychologist is certainly more apt to know more about the patient's frame of mind than a some psychiatrists who specialize in medicating rather than talking.
Regardless of whether you think this guy is guilty or not, there are questions to answer. In Shelley's dive logs, some of which are online, she mentions "panicing" more than once. Did the medical examiner do a good job? DO they KNOW she didn't have a heart attack or a stroke and then drown...or catch her mask strap on something and panic?
I keep reading the plaintiff's version of what happened. If someone came up behind me and turned off my tank and held me down...both of us would have some scratches and marks as I struggled to take his octopus or get away from him.