Carl,
I had a guest ruin some of my belongings (urine on a coffee table and area rug) and feces in my shower. So what I had done was immediately contacted the guest thru Airbnb and took pictures, then filed a claim with Airbnb.
Airbnb was quick to respond and so was the gentleman (thank goodness) he replaced my belongings as he did not want a bad review.
Try reaching out to the guest thru Airbnb and also make a claim with Airbnb. Take a lot of pictures as you will need them and also any additional cleaning to bill the guest.
I hope this helps and don’t let 1 bad apple ruin your experience!