Do I as legal guardian of my 64 year old son have a right to incident reports of his death from the company in charge of his care at time of death?

My son passed away on 3/14/21 and I have been trying to acquire incident report and investigation with no result. From information that I have verbally received from persons working with him at the time leading up to his death and during his passing, I feel there was neglect from the nurse and possibly others involved. I was told by an employee at their office that they would send me a summary but I want to see all of their reports regarding my son's death. I have received nothing from them.