Legal Dispute, retirement home?

Ok hope someone can answer this, I live in ontario canada, My grandfather recently ped away at Shalom Village in hamilton ontario and It was possibly due to a head injury he sustained. He was found lying on the ground in a known violent patients room and rushed to the hospital for treatment, he had 2 bleeds in his brain that the doctor suspects is from hitting his head on the ground, al the staff know that the patients room he was found in is a violent man, the staff kept changing there stories the entire time and kept prying for information about my grandfather while he was in the hospital. I know the staff there to be slightly negligent about some of there duties to. Yes we should have moved him to a different home but we were having cost issues and it was hte only home we could afford. Just for clarity im not interested in getting money out of the retirement home i just want them to admit it was there fault or just fess up in general about guilt in this matter. I dont know what legalities happen in a situation like this, since it was an injury the police are involved but the retirement home is telling us its just a formality.... any clarification on this matter or what my options are if any would be great help from anyone. Thankyou for being mature and understanding in this situation.