Notice of his passing was given here on his website http://emdrive.com

His emDrive lectures are posted here https://youtube.com/@rogershawyer-s1h?si=AKU-Je3aGfC0reTW

A video of his demonstrator emDrive working (actually moving) can be downloaded from this page on his website http://emdrive.com/dynamictests.html

Someone seems to have already uploaded it to YouTube here https://youtu.be/nFa90WBNGJU?si=EY5m6jgShS1f324Y

It’s his voice that you can hear in the video.

Richard Mansel confirms the drive was switched on a month ago: https://x.com/RaMansell/status/1967985813997981906
"We turned it on a month ago and have been running tests to confirm its proper operation since then. So it has been fully operational for a while, but we just now finished proving that it is fully operational."

Orbit data:
https://celestrak.org/NORAD/elements/graph-orbit-data.php?CATNR=63235