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The Third Dive: An Investigation Into the Death of Rob Stewart

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Based on the provocative film documentary of the same name, The Third Dive investigates the shocking death of a world-renowned conservation activist. When experienced diver and award-winning filmmaker Rob Stewart ( Sharkwater and Extinction ) drowned while diving off the coast of the Florida Keys in 2017, it was a shock to the world’s environmental movement. Reports suggested that Stewart was encouraged to perform a dangerous and ultimately fatal dive by a reckless Svengali-like instructor named Peter Sotis. Some bloggers went so far as to report that Sotis survived the dive by clawing his way onto the boat first, leaving Stewart to drown. A civil case was launched which directed blame at Horizon Divers, the company that had taken Stewart out on the dive. The allegation was that they had not done their jobs properly and left him to die in the water. Through interviews and investigative reporting, The Third Dive is a compelling read that attempts to uncover the mysterious and disturbing circumstances surrounding Rob Stewart’s untimely death.

216 pages, Hardcover

Published November 10, 2020

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About the author

Robert Osborne

3 books1 follower
Robert Osborne is a best selling author in Canada, an award-winning documentary filmmaker and investigative journalist. He’s spent more than twenty-five years working for network television shows and developed a parallel career as a feature writer, providing articles for the Toronto Star, Globe and Mail and the National Post.

In 2012 he moved into the documentary field, first working as a script editor for The Beaver Whisperers on CBC’s The Nature of Things. During the past ten years, he researched, directed, wrote and produced the documentaries Unstoppable: The Fentanyl Epidemic; The Third Dive: The Death of Rob Stewart and Malcom is Missing.

Robert has won multiple RTNDA awards and a CAJ award for Investigative Journalism. In 2009 he received a Citation of Merit from the Governor General’s Michener Awards for a documentary on police accountability. In 2018 he won the Canadian Screen Award for Best Writing in a Documentary for Unstoppable.

Robert has also published a non-fiction mystery book called The Third Dive, based on the documentary by the same title and he has also just published his second book, Malcom is Missing.

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Author 3 books1 follower
June 19, 2025
Excellent piece of investigative journalism. I highly recommend the book.
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