I believe that garrote was fashioned to kill and that is precisely what it did.In this case the garrote was for show only. It serves no purpose (in regards to the strangulation) except to the perp. The bruise on JB lower left throat area shows that obviously someone grabbed her here and twisted. I have often thought the strangulation served two purposes: possibility to hide the the twisting of her skin and the second to end her life. This was a manual strangulation.
Who would be so full of rage here do you suppose since no one broke into the house?
That was a slip knot that, once pulled, cannot be loosened so easily .
It makes no sense to me why something so heinous as that particular garrote would have been used to hide maybe an accidental pull on a shirt or sweater.
That would be similar to me as setting your car on fire because you have a scratch on the side of it.
In that case, the alleged cover-up is far worse than the actual occurrence!