I'm glad also that Andrew was able to show that to Derek. That's something I hoped people could pick up from this chapter.
If it helps any, no, Charlie did not kill Luke.
Sometimes I feel I did not give enough justice to the adults in this story. I guess it's harder for me to write because I am not yet at that point in my life where I'm responsible for my own kids or even the lives of anyone other than myself. Maybe some day I can redeem them in your eyes. Well, at least SOME of them...
There is only one chapter left in Part Four. Some feelings, the murder, and the psychiatrist will be resolved before all this is over. The uncle though... well, let's just say he's a completely different story.