On September 18, 2021, a fatal attack with a firearm on the 20-year-old employee of a gas station was carried out in Idar-Oberstein, Germany. The perpetrator, a 49-year-old man, had been requested by the employee to wear his surgical mask as mandated by the German government in response to the COVID-19 pandemic. The shooting received a lot of public attention and was related by some to the increasing radicalization of the so-called Querdenken movement[1][2][3] or to the recent rise of right-wing conspiracy theories, while criminal psychologists pointed to the possibility that the shooter may have been driven by personal or psychological problems.[4] In September 2022, the perpetrator was convicted of murder and sentenced to life in jail;[5] both prosecution and defence lodged appeals against the verdict.[6]
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