Traci O'Sullivan , 41 , found dead at apartment ##brook home in 2009 . Her ex - partner and their son , 5 , found her seriously injured body . She was last seen on CCTV two days before at supermarket buying drinks . Police say she knew her killer as no indication of unlawful entry at her home . They believe killer may have suffered injuries to hands from murder victims .
Traci O'Sullivan , 41 , found dead at North Frankston home in February . Her ex-partner and their son , 5 , found her seriously injured body . She was last seen on CCTV two days before at supermarket buying drinks . Police say she knew her killer as no sign of forced entry at her home . They believe killer may have suffered cuts to hands from murder weapon .