So you think I did it

"There is no greater mystery in Australian police files than the Bogle-Chandler case. On 1 January 1963 the bodies of Mrs Margaret Chandler & a friend, Dr. Gilbert Bogle, were discovered, half-hidden by rubbish, on the banks of the Lane Cove River. Both had apparently been violently ill before they died, otherwise there were no signs f violence. Who - or what - killed them?"