UK, I think its very possible that JBR was strangled with the "Turtleneck" while wearing it. I think it was found wet and balled up for any number of reasons. Could be that stretched or misshapen material was easier to hide if soaked and balled up. Maybe some sort of body fluid/s were on it or maybe all of the above. The messed pants found on the ground could also be from JBR defecating in them while being strangled...
Was there a struggle? Is that why the trophies and tiaras were on the ground as if knocked or thrown there? Is that what happened to the toilet paper holder and the stool that was out of place? Is this why Patsy shut down and became small when questioned about the bathroom and the things seen in crime scene photos (red turtleneck and tiaras? It has sure looked like the scene of a struggle to me....
Marks of Violence
Asphyxiation
Asphyxiation is the inability to breathe and so lack oxygen due to some obstruction of the respiratory system. Strangulation, smothering, and drowning are all common examples of this. Asphyxiation will bring about certain noticeable effects, including low levels of oxygen and high levels of carbon dioxide, and blood-staining around the mouth and nose. The skin may take on a purplish colour, a condition known as cyanosis. Tiny spots of haemorrhaging called petechiae may form due to the bursting of small blood vessels.
Asphyxiation can often cause the victim to vomit, which will collect in the mouth and throat. Strangulation may result in telltale marks left on the neck of the victim, whether bruising from hands or ligature marks. A smothered victim may be found with fibres in their mouth and throat. Victims of strangulation may also bear a broken hyoid bone, a horseshoe-shaped bone situated in the neck. Drowning, another common form of asphyxia, can be determined by water in the air passage and lungs. The water inside victims of drowning may be traced back to particular bodies of water based on the debris and diatoms (microscopic algae) found in them. Some forms of asphyxia may occur unintentionally, such as choking on food and accidental drowning. ........
http://www.forensicsciencecentral.co.uk/pathology.shtml
Focusing on the visible signs of strangulation, we found that police officers reported no visible
injuries in 62 percent of the cases. Minor visible injuries, such as redness or scratch marks, were
reported in 22 percent of the cases, but often injuries were too minor to photograph. Significant
visible injuries, such as red marks, bruises or rope burns, were found in 16 percent of the cases.
While these injuries were significant enough to photograph, the majority of those photographs
were unusable because they were blurry or washed out from the flash. This suggested a need for
police officer training in close-up photography. Victims sought medical attention in only 3
percent of the cases, primarily due to persistent pain, voice changes, or trouble swallowing.
Focusing on the symptoms reported by victims and documented in police reports, we found
victims often reported pain to their throats or hoarseness. Other victims reported nausea, loss of
consciousness, hyperventilation,
defecation, uncontrollable shaking, or loss of memory. In one
case, the victim had a miscarriage within 24 hours of being strangled........
http://www.ncdsv.org/images/strangulation_article.pdf