I believe that here there is a more important question to answer: why do you want to know the “truth” (which is your wording as I am not sure if I agree with the concept but that is irrelevant to my point). Why are you not comfortable with the unknown of the current tragedy? I think it might help to dig into the depth of why you are spending some much money in search for the “truth”? Can you try to focus on experiencing this tragedy for what it is and try to fight the urge to learn more about the future or the truth? Can you learn to be comfortable with not knowing? In life very few things are in out control. And this is one of them. You are experiencing something very tragic and impactful. Embrace the unknown and the unknowable.