 On the early morning of November 12, 2000, while ministering at Salesian High School in New Rochelle, NY acting as a counselor and confidant for the personal problems of fellow priests and nuns, Marino died aged 66 at the St. Ignatius Retreat House, Manhasset, NY.He was discovered in bed by the housekeeper and it was established that he had died of a heart attack.He was buried in Biloxi, Mississippi.