article_snippet.sent: Peirce was Peirce murdered in 2002, gunned down outside a Melbourne supermarket.
article_snippet.sent: Peirce wife, Wendy, said in a 2005 interview she husband had planned and carried out the killings.
article_snippet.sent: It is believed Peirce was driven to murder by a desire to gain retribution for Peirce best friend, Graeme Jensen, who was killed by police.
article_snippet.sent: Was gunned down in 2002 outside a supermarket.
article_snippet.sent: Denis Allen wife, Wendy, admitted in 2005 her husband planned and carried out the Walsh Street murders.