Dan Werthimer wrote:
I'm very sad to report that Don Backer died this afternoon.
Don collapsed just outside his home, probably from a heart attack.
Thank you, Dan, for letting us know. What dismal news with which to
start the week. He was such a brilliant, inspiring and vital person.
I'm happy to have been able to call him a friend for so many decades.
Don had a great life and was a wonderful man.
We will all miss him.
Perhaps we can set aside some time at the CASPER Workshp next month to
share our memories of Dan.
Tom