The device offered insights into its previous owner's last moments alive -- a recorded plunge of more than 2,000 feet and a giant uptick in measured temperature. It was evidence that the shark had likely been attacked, killed and eaten -- the temperature increase a result of the tracker spending time inside the intestines of another predator.
But what could kill and eat a nine-foot great white shark? A vicious deep sea monster?
Now, a new documentary suggests the only logical answer is that the shark was eaten by another shark -- a shark scientists are calling a "colossal cannibal great white shark" -- sounds adorable. A portion of the film is available on YouTube.
The documentary, "Hunt for the Super Predator," produced by the Smithsonian Institute and ABC, contends that the tracking device data supports the theory of a cannibalism, or at least a big great white bully.
That bully, scientists estimate, was roughly 16 feet in length and tipped the scales at more than 2 tons.
As film reviewer and science writer for Gismodo Australia, Casey Chan, concluded of the doc: "Finally it settled on a hypothesis that makes the most sense to me. Big sharks eat little sharks."