Otenyo Mayerthorpe Ofc Carrisalez Police Wittunga RCMP Matix rioter Karf motally fired PSNI gunmen Coombing Swepson Matasareanu 32lb BOQQ Prestifilippo RUC Zehm Dalj Seargant gunman TBTA police Barttelot GIPN farm Birdzell Kalstedt Clonbeith mortally Mye Sepura shotgun assailant