Schnelldorf is a municipality in the district of Ansbach in Mittelfranken in Bavaria in Germany. It neighbours to Feuchtwangen, Wörnitz and Wettringen in Bavaria and Rot am See, Wallhausen, Baden-Württemberg, Satteldorf and Kreßberg From Wikipedia
The attack, which left a 14-year-old with head injuries, was reportedly premeditated and announced online by the suspect.