Nel: The magazine rack is the only thing that could have given her height?
W: He agrees.
Nel: If she fell back, she cannot support her own body weight, but she's sitting on the magazine rack, leaning forward towards the door. That could give her the necessary height for C and D to hit her.
W: I'm not sure.
W is really making me cross is the way he is evading this .. he quite clearly conceded to it (i.e. that she was sat on the magazine rack) last week and then, after and adjournment, he came back and stated the opposite and he is still sticking with that and it seems too obvious to me that he realised his mistake when he conceded to it and is now being v.cagey and just won't give his real opinion about it because it goes against the DT version.
Edit: oh hang on, I think it was that he admitted to the magazine rack being in the postion where OP said it wasn't .. apologies, I got that slightly wrong