" Craig panicked because the damage was already done and he would be going to prison. He broke up a few vials of Nubain, poured it in her mouth, stckk gauze in her mouth, taped her whole head in duct tape, then put gauze on the tape to help it burn faster. "
Maybe the " gauze" (mentioned above) that was put on top of the duct tape, eventually slid down, and was the white fabric that was found around her neck, that was mentioned in the report ?