https://thenextweb.com/apple/2020/02/20/larry-tesler-father-of-cut-copy-paste-died-age-74/

You might not know Larry Tesler’s name, but I can guarantee you used something he created. This former Apple computer scientist, the inventor of some of the world’s most common user interface tools — including the copy-paste — died this week at the age of 74, according to a report from AppleInsider and an obituary from Xerox.

— Xerox (@Xerox) February 19, 2020