In October 1989, Tracey Wigginton and her lesbian lover Lisa Ptaschinski together with another couple, lure a drunk, 47 year old Edward Baldock, into their car before driving him to a park on the banks of the Brisbane River. With the promise of showing him 'a good time', Wigginton, aided by Ptaschinski, stabbed Baldock 15 times in an attack so brutal it practically severed off his head.
