There is also the presumption that a sexual assault would be by a man, perpetrated upon Rebecca, a woman.
IMO, there is a serious lack of imagination from authorities such as Gore, that sexual assault could have occurred perpetrated by a WOMAN upon Rebecca.
Men aren't the only gender capable of sexual assault. Sex assault by a woman upon a woman yield a whole DIFFERENT quality and quantity of evidence.
I don't for a minute believe Rebecca was the victim of a random or violent homosexual assault. I believe Rebecca was assaulted in a way to sexually humiliate her, and the evidence POINTS to another woman. That is a whole different perspective, that would NOT show up on a traditional "sex assault" exam. But it is STILL "sexual assault" IMO.
It's also "regular" assault, IMO. Violent assault.
A person can be sexually assaulted with a foreign object. Depending on how violently the object was used it may or may not leave visible evidence of a vaginal assault or trace evidence from the object.
As stated above in this thread, a non vaginal assault can occur leaving DNA evidence on something like panties. I still cannot believe the panties were not tested and simply because of Jonah's words. I don't even have to believe a sexual assault occurred to question why the panties were not tested. Panties found at a crime scene in a quest house, the person staying in the guest house reported finding the victim and also claimed to be watching porn right before finding the victim should have been tested if this was indeed an unbiased investigation.