The cold temperatures can trigger symptoms such as wheezing, coughing, and shortness of breath. Even in healthy people, cold, dry air can irritate the airways and lungs. It causes the upper airways to narrow, which makes it a little harder to breathe.
IMO if he lay on top of libby during the rape she could have been easily asphixated given she was suffering from hypothermia. I dont think he strangled her as there was no mention of her bone being broken which is very common in strangulation but it's not unheard of for it to not be broken.
"The hyoid is the U-shaped bone of the neck that is fractured in one-third of all homicides by strangulation"
IMO if he lay on top of libby during the rape she could have been easily asphixated given she was suffering from hypothermia. I dont think he strangled her as there was no mention of her bone being broken which is very common in strangulation but it's not unheard of for it to not be broken.
"The hyoid is the U-shaped bone of the neck that is fractured in one-third of all homicides by strangulation"