I think you missed the context of my comment. My point was purely in relation to the question of why OP made such a fuss about the position of the magazine rack, and the suggestion it was to emphasise the difficulty he was having getting RS out if the toilet. As he called Stander after he'd got her out, that doesn't really make sense.
Could it be possible that the magazine rack must be in place to justify the bruise on her buttocks
because it actually came from him hitting her with the cricket bat?
I have a new theory that I've been playing with posing the idea that there is an entirely different possible scenario which explains what happens.
It is based on a few clues that have puzzled us sleuthers, such as why he insists the magazine rack has been moved, and why he jammed his fingers down her throat, why her top was on back to front, and why she has the marks of a beating on her back, and why her nipple was abraded.
Is it possible that the fight which lasted so long took place all over the house and it involved escalating physical abuse of the type that we are all familiar with: the slapping, the hair pulling, the wrestling, the choking until almost unconscious.
What if they started fighting downstairs when she discovered he had nothing for her and she knew that he had created that huge Valentine's Day surprise for a previous girlfriend, taking days to prepare with the balloons and message on the driveway, etc. Then it escalates and becomes a shoving match, a slapping, hair-pulling, knock down drag out.
Let's say he didn't intend to cause permanent injury but thought he would give her a fanny paddle blow flat on the behind, but because he was running up the stairs away from him, the bat did not hit her flat on the fanny, but rather inflicted the "lunar" huge bruise on the sensitive inside of her crack. The angle of the injury is perfect for that scenario. She screams and falls on the stairs grabbing at her butt and he tries to shut her up by putting her in a headlock facing towards him, pressing her mouth to his chest.
He is carrying her up the stairs by the head like that and she struggles mightily, causing the nipple abrasion. His upper body strength is legendary, so he thinks he is avoiding choking her by having her face him. This causes the strange injury to the base of her head, noted by the pathologist, where her spine connects with her skull.
He throws her on the bed, flinging blood on the headboard. She is not completely conscious and he pulls her pants off because she is not going anywhere--he is not going to let her leave and make a report. There are minor wounds bleeding (from the nose and scalp) and these are the sources of the drops in the bedroom.
While he is gone, she wakes up, hurriedly pulls on clothes (top on back to front), throws her fresh pants off the balcony and locks in the bathroom, thinking she'll jump from the window.
When he finds she's locked him out and is screaming from the balcony, he becomes enraged and takes the cricket bat to the door. HE MUST STOP THAT NOISE before security comes! Of course OP took her phone, so she grabs one of his thinking she can use it to call the police....
He sees she is in the bathroom and he is full of adrenaline and fear (that she will report him and he'll be ruined). He has to stop the screaming and keep her from talking to anyone. He kicks the door and yells at her NOT to call the police. She says she will unless he lets her go, but of course, he knows he can't trust her. She told him what a sorry piece of **** she thinks he is.
He hits the stainless steel plate with the cricket bat saying she'll be sorry if she does and his kicks are ear-splitting and now he hears the window slide open and is still screaming and ...SHE IS GOING TO ESCAPE!
He goes and gets his gun AND TAKES OFF HIS PROSTHETICS. This is her fault, he thinks, she has left me no choice. He screams "Get the F*** out of my house" in front of the door, on his stumps, and Reeva knows she has made a terrible mistake. She makes that blood-curdling scream a second before he fires.
He hears the magazine rack sliding and/or peeks through the door, adjusting his aim and fires until she stops screaming. He is regretful, but not overly so because she made him do it.
I won't run through his post-murder behavior because it speaks to his guilt itself. He has to go put his legs back on, and make adjustments to the crime scene. You can fill in those mysterious blanks of time with his need to break or steal phones, and destroy any evidence that might be speak to premeditation.