Case Researcher

I want someone to research a case involving the brutal murder of my father. I am trying to gain closure 12 years after the death and I want to learn everything I can related to the case of the 3 killers who were found guilty. The murder was what seemed like an act from spontaneous circumstance but I’d like to understand more about the case, know prior cases the murderers were involved in, and obtain all the evidence and information the jury was given during the trial.