Summary: Pretty Maria. The murder of 7 year-old Maria Ridulph in 1957 was shocking enough, but the case would later make history as an arrest was made more than 5 decades later. Would her real killer finally be brought to justice? This is the oldest cold case in American history to have found a suspect and convicted him of the crime. http://www.acandyrose.com/maria_ridulph_timeline.htm