Oh I get it...a phantom really did log in to Chris' computer and Chris knew it, and he was trying to trace them so that he could find out where they were located and catch them. He found a keystroke recorder on his laptop at one time, just prior to the gmail account being created -- that keystroke recorder proves that the Phantom knew just how to mimic Chris' writing because all of it had been cobbled from past emails that Chris wrote in the past.
The contortions are about to hit. If they are going to try to use techy stuff to blow this up, then the prosecution needs to have their techy think tank on hand to prove that the herrings are easily blown up.
They must blow up that which the prosecution has set up... They must try to prove that someone could get into the house through that window or otherwise (maybe through the chimney?), they must try to prove that Keith or Tara could have been there that day (they have to match the herrings don't they?), they have to match the possible shoe print with someone's shoe (maybe they found one that would match?), they have to prove that someone could easily have mimicked all of Chris' linquistic things, what else?
They have to prove that Chris lied, that he wasn't at the house that night? That wasn't him driving the car out of the driveway that morning to go to the gym or him using that phone? That Keith was actually at the house, or Brad?