ravenne hasn't been killed yet and she was in the house during the murders...except for the last in which she says she went shopping...but did she really?
Sorry pooh...I also am not totally convinced that the chicken in the microwave/oven was actually you.
And what about Alex and Jellby? Jellby seems very intent on getting rid of all "evidence" and classifying everything as an accident.
Could there be multiple killers?
Lots of questions need answering.