Joanne Ratcliffe , August 25 , 1973 , and Kirste Gordon , 4 , went missing 11 . The girls were at Adelaide Oval with their families for an AFL match . The key suspect in the cold case is Stanley Arthur Hart .
Joanne Ratcliffe , 11 , and Kirste Gordon , 4 , went missing August 25 , 1973 . The girls were at Adelaide Oval with their families for an AFL match . The key suspect in the cold case is Stanley Arthur Hart .