K. C. Constantine

He was an alumnus of Westminster College in New Wilmington, Pennsylvania, and claimed that he "flunked freshman composition twice" because he "did not know how to make an English sentence."

[citation needed]) He lived in Greensburg, Pennsylvania, with wife Linda (they married in 1962) and continued after she died in 2018.

Rocksburg is a by-product of Kosak's hometown, McKees Rocks, and the nearby cities Greensburg and Johnstown.

"[3] In May 2011, Kosak appeared in person for the first time at the 16th annual Festival of Mystery held at the Greek Orthodox Church in Oakmont, signing his books and giving a live interview.

Mysterious Press announced they would be publishing a final novel—more than twenty years after his last publication—entitled Another Day's Pain.