In 2003, Philip Edwards went to David McNee's house to perform a sex show for $120 but ended up killing the well known interior designer.
Elisabeth McDonald has studied the use of provocation defences. Photo: University of Canterbury
McNee's killer used a partial 'provocation defence' which was at the time referred to as the 'gay panic' defence.
He was eventually found guilty of manslaughter and sentenced to 9 years in prison.
Law Professor Elisabeth McDonald from Canterbury University has looked into this case and the controversial defence used.
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