[Adorabat... thinks that's all from what he can see from the doll. She makes some thinky noises.]

...Maybe... The doll was eating one of your tasty-but-not-quite-as-tasty-as-Mao-Mao's-food Chili dogs and then... hmm... Maybe the throat was cut open? But there's a wound in the back and not much blood in the front... Wait, what if the back stab wound was the first wound, but didn't kill him, the throat cut did.

The killer maybe... um... Maybe the killer used some water to clean off most of the blood, then used the jump rope to hide the neck wound, then stabbed him in the front.

...I think. That's what makes sense to me.