The largest ever donor to Oxford University and "extraordinary intellect" Dr James Martin has died, the university has said.
The body of 79-year-old British-born Dr Martin was found by a kayaker on Monday floating off the coast of Agar's Island in Bermuda where he lived, according to local reports.
A police spokesman told the Bermuda Sun that officers are carrying out an investigation into how the author and philanthropist died, but added that there appeared to be no suspicious circumstances.
Dr Martin's record breaking donation to Oxford University, believed to be more than £60 million, created the Oxford Martin School in 2005 - a research centre which addresses pressing global issues.
However, the Pulitzer nominee was best known for his best-selling books on computing and related technology, including The Wired Society which predicted the internet, and The Meaning Of The 21st Century.