ABOUT THIS STORY | One Sunday afternoon in 2008, Mark Castillo called down to the front desk of the Baltimore Marriott Inner Harbor at Camden Yards, the hotel in which he had been staying, to report that he had killed his three children. Castillo would later tell police that he drowned each of them in the hotel bathtub, then tried to kill kimself. He pled guilty to three counts of murder on Oct. 14, 2009, and was sentenced to three life terms without the possibility of parole.
Mark Castillo, right, is charged with the murder of his children, from top, Anthony, Austin and Athena. (Castillo photograph courtesy NBC4.com; childrens' photo courtesy AP/Amy Castillo.)