Luigi Costa , July 2012 , is accused of killing his neighbour Terrence Freebody . Costa allegedly stomped on his head , cut his throat and stabbed him multiple times in Freebody 's dining room in Red Hill , Canberra on 71 . Experts says Costa suffered from dementia and alcohol abuse at the time . He also said there were signs of Costa 's decline in the lead-up to incident .
Luigi Costa , 71 , is accused of killing his neighbour Terrence Freebody . Costa allegedly stomped on his head , cut his throat and stabbed him multiple times in Freebody 's dining room in Red Hill , Canberra on July 2012 . Experts says Costa suffered from dementia and alcohol abuse at the time . He also said there were signs of Costa 's decline in the lead-up to incident .