There's nothing said about what they found on the impact site. The drone leftovers could be telling, at least to find where it came from and who it could belong to?
Odd choice of image. It's an F-16 story and thats an F35?
Create a once-a-year drone holiday. If they can't get past the hobbyists and spies, that's good to know now rather than later.
Some nation state has some pretty big balls. The downside for being caught seems quite high.
If the drones had transponders that could be tracked in the U-space, and there was an ATM model adopted that could track them, then this wouldn't be a mystery. Thales (https://www.thalesgroup.com/en/worldwide/aerospace/press_rel...) and Airbus (https://www.airbus.com/en/innovation/autonomous-connected/ai...) both say they have a model that tracks drones, even hobby drones.