Frank Castillon, age 82, of San Antonio, died Tuesday, November 6, 2007. Mr. Castillon was a retired member of the San Antonio Police Department. He was the Chief Medical Investigator for the Bexar County Medical Examiners and for the last 22 years he worked the Homicide Division and retired in 1977. He was known to his friends as "Mr. Homicide". Papo was an avid walker and enjoyed Woodlawn Lake. He was a devoted husband, father, grandfather and great grandfather. He is survived by his wife of 61 years, Dolores Castillon; sons, Frank Castillon, Jr and his wife, Janet of Boerne, TX, John L. Castillon, and Richard William Castillon and his wife, Bonnie Sue; daughter, Cynthia Ann Vasquez and husband, Patrick, all of San Antonio, TX; nine grandchildren; ten great grandchildren; sisters, Billie Rodriguez of San Antonio, TX, and Ella Vega of Los Angeles, CA; brother, Ramon Castillon and wife, Martha of Houston, TX; numerous nieces and nephews.