Good stuff. Honestly, I've never seen one hit, mule kick, and crash out of there the way you described and not be dead in pretty short order. Sometimes they can run a good distance, and with no exit hole, blood can be almost non existent and they can be a tough find sometimes.
Nice work, and awesome job by your little helper. I have one too...she's probably helped me cut up at least 20 deer. She's been out with me since age 5, and helped to gut and drag with me a bunch, and actually got her own first buck last season at age 12. Lots of fun, congrats!