U.K. tech tycoon Mike Lynch is missing after a luxury yacht sank off the coast of Sicily early Monday morning.

The yacht, which records suggest belonged to Lynch, sank after encountering a storm. There were 22 people, including 12 passengers and 10 crew members, on board. Of them, 15 have been rescued, including Lynch’s wife Angela Bacares.

One body has been recovered. While Lynch, 59, is not as well known in the U.S.

, in the U.K., he’s basically Bill Gates.

Lynch is the founder and former chief executive of Autonomy, one of the world’s biggest software companies. The company grew out of Cambridge Dynamics, a fingerprint recognition firm he created in 1991. Lynch sold the massively successful company to Hewlett Packard (HP) for $11 billion, which ended up earning him more than $800 million.

But it also brought about a 13-year legal battle for the entrepreneur, who was accused of fraud and conspiracy leading up to Autonomy’s sale. | The prosecution argued that he artificially inflated the company’s numbers and that he had a history of mob-like intimidation. In the end, the businessman was cleared of the charges after his team was about to prove the case was essentially “a dispute over differences between U.

K. and U.S.

accounting systems” (in other words, one big misunderstanding). Lynch was only just acquitted in June. At the time, he said in a statement that he was “elated” and “looking forward to returning to the U.

K. and getting back to what I love most:.