At least she was dead when he started cutting. The cut on her leg is postmortem. It looks like he was going to cut her to pieces then gave up. You can see the outline of her face in blood on her stomach. He must have laid her head there.
This Chinese girl’s body was about to be completely dismembered to be stuffed in a suitcase when something gone wrong and the murderer had to gave up from his task and run away from the motel room, taking away her severed head as souvenier,,,