Twenty years before he was drummed out of the priesthood for molesting boy, the Rev. Brian McKeon told the pastor of his first church that he had acted inappropriately with a teenager. Nothing, however, was done. McKeon’s supervisor at St. Anthony of Padua Roman Catholic Church in East Northport, Msgr. Edward Donnelly said, I thought it was just a one-time thing. Donnelly talked with the boy, but never asked him or McKeon what actually happened. I didn’t want to know, he said, adding that such things can run the gamut.