It is a story known by so many everyday Australians and dozens of true crime sleuths in America.
On a winter weekend in 1973 at the Adelaide Oval, Joanne Ratcliffe, aged 11 and Kirste Gordon, aged four, took two trips to the toilets in each other’s company without any adults present.

Ratcliffe’s sister Suzie has a sole mission in life - to help other families that have experienced similar levels of grief through the foundation she launched, Leave A Light On.