I'm just so thrilled that you feel that my mum and dad being killed might have actually have enhanced my grades. Have you any idea how unkind and cruel that sounds. And how totally out of touch with the reality of my life in years 12 and 13.
I lived for virtually all of my A2 year on my own in my family home - having to do all my own cooking, cleaning, shopping, washing, ironing and gardening before I even could start school work. Exactly how did that help me? And that is taking no account of the sadness I was feeling. And all of this isn't worth any consideration?
Why do you think that Personal Statements and References are part of the process? Clearly grades are NOT the only thing that matter to universities.