when the story came out i didnt think there was enough information to make a conclusion. as more details come out it really does seem this was premeditated.

i always thought her shooting him was wrong and inexcusable but i could see how she made the mistake of the wrong apartment. i now think its unlikely she accidentally went to the wrong apartment.

her changing story contributes to this. the details of the apartment door contribute to this. her "accidentally" getting off on the 4th floor instead of 3rd is also unlikely. it would make more sense to get off earlier on accident.