On June 10, 2025, the gunman—whose identity remains undisclosed due to privacy laws—opened fire at his former school. He reportedly struggled socially, was a frequent school dropout, and lived with his mother. Following the shooting, police discovered plans for further attacks and a nonfunctioning pipe bomb in his apartment. The incident has sparked national mourning and renewed debates around gun control in Austria, a country with a low rate of gun violence despite a high number of firearms.

Authorities continue to explore how someone with the shooter's history could still legally obtain weapons, emphasizing the urgent need for a reassessment of psychological testing regulations for gun ownership.