Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
His wiki article has been updated to say that he passed away recently. Are there any other sources confirming that? Thanks.
If it is more appropriate for another stackexchange site, please feel free to move the question there.
The answer seems to be yes (from private sources close to Sir Peter Swinnerton-Dyer).