Many think JonBenet was Stun Gun many time before she died. If the killer used a 50,000 volt stun gun and left burn marks as shown in the crime scene photos, then we need to add this to the answers.
The temperature of the wine cellar floor was colder that the first floor.
The concrete floor in the room was not headed. Cold.
Background information:
Rigor mortis is very important in meat technology. The onset of rigor mortis and its resolution partially determines the tenderness of meat. If the postslaughter meat is immediately chilled to 15°C (59°F), a phenomenon known as cold shortening occurs, where the muscle sarcomeres shrink to a third of their original length.
Cold shortening is caused by the release of stored calcium ions from the sarcoplasmic reticulum of muscle fibers in response to the cold stimulus. The calcium ions trigger powerful muscle contraction aided by ATP molecules. To prevent cold shortening, a process known as electrical stimulation is carried out, especially in beef carcasses, immediately after slaughter and skinning. In this process, the carcass is stimulated with alternating current, causing it to contract and relax, which depletes the ATP reserve from the carcass and prevents cold shortening.[
Rigor Mortis, a stiffening of the muscles, usually starts to take place at around 3 hours after someone is dead with full rigor occurring at about 12 hours after death. After the 12 hour mark the rigor slowly ceases and at around 72 hours rigor disappears.
If the killer killed JonBenet at 6:00 am leaving her on the cold concrete floor. That is Seven hours.
Now at 1:05 pm John finds JonBenet and take her upstairs to the heated first floor and then is pickup and mover again to the heated living room near the Christmas tree. She was then cover with a rug and tee shirt.
Many hours went by and around 10:00 pm the coroner take a quick temperature of the body and notes it in the file.
Rigor mortis can be used to help estimate time of death. The onset of rigor mortis may range from 10 minutes to several hours, depending on factors including temperature (rapid cooling of a body can inhibit rigor mortis, but it occurs upon thawing). Maximum stiffness is reached around 12-24 hours post mortem. Facial muscles are affected first, with the rigor then spreading to other parts of the body.
This mean jonBenet could have been killed at 6:00 am. and as early as 10:00 pm on the 25th.
Also Rigor mortis begins within two to six hours of death, starting with the eyelids, neck, and jaw. This sequence may be due to the difference in lactic acid levels among different muscles, which corresponds to the difference in glycogen levels and to the different types of muscle fibers. Over the next four to six hours, rigor mortis spreads to the other muscles, including those in the internal organs such as the heart.
The onset of rigor mortis is more rapid if the environment is cold and if the decedent had performed hard physical work just before death. Its onset also varies with the individual's age, sex, physical condition, and muscular build.
This is very importance:
It is more rapid if the environment is cold and if the decedent had performed hard physical work just before death. This is what happen to JonBenet in the cold basement and place in the wine cellar after being tortured.
This is how we used 6:00 am at the time of death for JonBenet.
Team JBI