The blood was found in the autopsy - part of the attack that preceded or directly followed her death. As far as I've been aware, there is no argument that she was abused in conjunction with her death. That's established.
My objection was to the assumption that she suffered chronic sexual abuse before that time. Before that night.
Partially eroded hymen - yes it does have several explanations beyond abuse. As do the vaginal infections duly noted in her regular medical file by her pediatrician (especially in conjunction with bed wetting - which can be an irritant, as is frequent washing with soap).
Is there a longer autopsy report than the one at this link?
http://tinyurl.com/7gs4syw
I get that Steve Thomas recounted that in his book, but after reading it I don't feel he was a very bright or insightful individual. He seemed more procedural than intellectual, which is probably fine for 99.9% of the crimes he was faced with (was it on the drug squad?) - but his PDI theories never held water to me. As it happens, I also believe PR knows what happened and may have even contributed, but I don't believe ST's theory about it in the slightest.