Damage to STR - Liability Mystery

[Neil G.]

I just showed up to my rental property after 3-4 months and found my outdoor pizza oven smashed. It was handmade by the previous owner and I have no idea of it's value besides the fact that it was a gorgeous quirk that drew in STR renters. It was made with individual mother of pearl tiles.

Management didn't know when it was destroyed or who did it, but they did tell me that they suspected my neighbor has been breaking into my yard and using the area.

I have rental home insurance plus supplemental STR insurance, but I have no idea how to handle this since my management doesn't have any idea about the incident.

My primary insurance told me that the Airbnb renter should be liable, but again, I have no idea which renter did it, or if it even was a renter.

How should I proceed with this?