K. C. Constantine

Carl Constantine Kosak is a McKees Rocks native, he lives in Greensburg and is 76. Source: http://www.post-gazette.com/ae/books/2011/05/03/Reclusive-author-K-C-Constantine-reveals-himself-at-mystery-fest/stories/201105030270 K. C. Constantine (a pseudonym for Carl Constantine Kosak; born 1934 in McKees Rocks, Pennsylvania) is an American mystery author. - Wikipedia