Police caught the guy. Probably. He admited to fly his drone in that region at the time, but had no idea he was so close to the airport.

The uav has gps and logs position and time, so they will know for sure eventually. It's illegal to operate drones there, the guy can go to prison for up to 8 years.

Source (in Polish) http://www.rmf24.pl/fakty/news-incydent-z-dronem-zatrzymano-...