Double Cross
Two women jokingly agree to kill each others' husbands. Then one really does and blackmails the other into killing her own.
12 May 1950, Elgin, Illinois, USA
26 February 1953, Portland, Oregon, USA
2 July 1970, New York City, New York, USA
31 July 1961, Joliet, Illinois, USA
7 June 1976, North York, Ontario, Canada
20 April 1968, Montréal, Quebec, Canada
