What I would change in Stuck in Stuck in Neutral

In my book, Stuck in Neutral, I would like to change the fact that Sean lives. I know, crule, but really dramatic. I think this would give the book some more action and something the reader is not expecting. Some readers might not like this, but heres the catch, his father isn't going to be the thing to kill him. One of his seizors will get to rough and out of hand even for Shawn's medichin can't control. So he dies. It would be at the part int the end when his father is sitting on the send of his bed about to kill him. Instead of his father seeing the brilient gleam in his eye, he puts the pillow on his face then Shawn goes into the seizor and passes. His father will cry because he thinks he's the one that killed him and Shawn's spirtit will float free to be the 14 year old boy he dreamed of being for so long.