Kestrel, you have to bear in mind that the torn bra was placed next to the underwear, next to the pants. This is a rape scene with the torn clothing off the victim in full display at the feet of the victim, aligned and improbably neat and conveniently displayed at the victim's feet. Lest the people watching the crime scene might be lost in a jungle of fathomless mystery.
It has been established that the pants, underwear and soxs were pulled off the victim post-mortem.
Now I will refer you to this photo and you tell me after pulling the underwear and pants off the victim, if one leg will pull itself up in the position it is or more likely would remain like the left leg which is perfectly straight:
http://i35.tinypic.com/v6t6qs.jpg
It seems you don't understand the nature of proof. You assert that the pants, underwear and socks were pulled off post-mortem, but don't provide evidence to back it up. Is it simply blood patterns this is based on, or do the Italian police have a magic box that detects post-mortem clothing removal?
The fact that Rudy Guede's DNA was found inside Meredith also doesn't fit with your assertion that the victims clothing could only have been removed hours after the crime.