I should be in bed by now (2.58 am atm in Scotland where I am currently attending university), but before I do, one thing I can't get out of my head, the one I mentioned on my previous post: the phone call was made at 1.58 am. So, X&E and - separately - M&K had arrived at the flat at 1.45 am. That means within a 13-minute timeframe the killer, on a frenzy, stabbed four people to death and within that same timeframe the phone call had already been lodged and someone reported seeing an unconscious person, how is this possible?
What bothers me about this is that for a complete stranger who had never been inside this 3-floor house it would take at least a couple of minutes to figure out where to go, which doors were those to the bedrooms, double-check nobody was in the bathroom or the living room or the kitchen getting a snack, etc, especially if he/she already had a target in mind. All while being in a place pitch dark and trying not to make any noise. It has been reported one or more of the victims had defensive wounds, so those killings would have taken longer than those in which the victim/s were in a deep sleep and had no time to react and try to defend themselves.
Then there is E. If the killer did not know he was there, the element of surprise of finding a tall, strong male in the house would have caught him/her off guard and that would have added more time to his/her horrible operation.
13 minutes for four killings, surviving roommates woken up, phone call placed, and killer out of the door unseen by neighbours or anyone in the street? This timeframe does not add up for me at all.
Second thing that bothers me - X&E and also M&K arrived at 1.45 am - mere coincidence or were they ''summoned'' there by a person (I don't mean the surviving roommates, but someone else - the killer) with the excuse to chat about something and this was a trap? That was an initial theory in my head, but then this does not add up either as police have reported there were all asleep at the time of the attack, so that means the moment they got in, everybody got into bed fairly quickly and fell asleep.
I just don't see how this can have been perpetrated by someone who did not have at least a basic knowledge of the layout of the house. Uhm... I know my post does not add anything of value, just thinking out aloud. All of the above MOO, of course. Goodnight, fellow sleuths.