I've seen multiple references to Watson's "slow ascent". Does anyone have specifics on just how slow?
STORY: The Hug of Death Source:
The hug of death
[Interview] CONSTABLE MURDOCH: "Mr Watson's dive profile shows he took two minutes and 30 seconds to reach the surface, which is a very conservative rate of ascent, considering his rescue diver training and the level of emergency," he said. "His time based on a safe civilian rate of ascent should have been 9m a minute, which means he should have taken just one minute and 18 seconds to reach the surface to seek help. (His dive profile showed) there had been no rush to get to the surface."
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Watson tries to explain the slow ascent by telling police that he attempted to contact another diver for help, even by shaking him, and described the other diver as an Asian diver, but investigators were not able to locate the diver Watson described.
[From Watson's Statement with Police.] WATSON: the well yeah, I the guy that I tapped was a Asian male I mean cause he he looked, we looked directly at each other.. wasn't like a you know hey check this out I mean it was cause I was, I was frantic at that time.. um you know grabbed and shook him, they turned around I was screaming her name..
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CORONER'S REPORT: Gabe states that in his ascent completing the fatal dive; he addressed a diver underwater of Asian appearance and signaled to that person the difficulties Tina was in. All other divers in the water that day with the exception of Mr Kim and Miss Jeon were called and excluded themselves as the diver referred to by Gabe. Mr Zillman [Gabe's attorney] submits that this email contact.. I cannot dismiss Gabe's claim that he did contact a diver during his ascent.
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However, if he is not ascending, this is not an explanation for a slow ascent. The dive computers starts recording the ascent at the time he starts his ascent, not when he is shaking or trying to communicate with another diver. Then, Watson then says he "shot" to the surface, but his dive computer records two minutes and 30 seconds to get to the surface from 40 feet (during an emergency). That is slower than the leisurely recommended ascent rate CONSTABLE MURDOCH described. It only took the instructor who brought Tina up less than 2 minutes to go all the way to the bottom at 90 feet and bring her back up to the surface.