Moscow Multifunctional Center shooting
On 7 December 2021, a mass shooting took place in the Moscow Multifunctional Center in Moscow, Russia. 2 were killed and 4 more were injured. The perpetrator was identified as 45-year-old Sergei Glazov, who had previously served in the Federal Security Service. Shooting 
The killer came into conflict with the staff at the MFC in southeastern Moscow after refusing to wear a mask. The employees, in turn, refused to provide him with MFC services. The attacker then first went up to the Zhilishchnik State Budgetary Institution with a pistol and fired at one of the employees. Then, going down from the third floor, he managed to shoot at and kill a security guard. On the way, he came across two more visitors, and he began to shoot at the man with the child. Glazov tried to flee after the alarms went off, but he was detained. In total, two people were killed, and four were injured, including a 10-year-old girl. Aftermath 
Sergei Glazov was charged for murder of two or more persons, attempted murder and illegal possession of weapons. A psychiatric examination of Glazov was appointed. The 10-year-old victim underwent surgery after the attack. The four wounded are being treated in Morozov Hospital. The police officer who neutralized and detained the perpetrator, Georgy Domolaev, was awarded for his actions. References 

2021 murders in Russia
2021 mass shootings in Europe
Mass shootings in Russia
Crime in Moscow