Moret (b. 1949 - d. 2020) played in the majors from 1970 to 1978 for the Red Sox, Braves and Rangers. He had a career record of 47-27 with 408 strike outs and a 3.66 ERA.
Moret passed away on December 7, at the age of 71 from cancer.
I mailed to Moret on August 12 and got the cards back on October 13, for a 62-day TAT. The last success anyone received from him was on November 17. He must have taken a turn around that time.