RIA Novosti writes about this.
The invader turned out to be 32-year-old Alexander Grichenko, who admitted that he is registered in a neuropsychiatric dispensary. The source of "Interfax" notes that the hostage-taker sought help from a psychiatrist and took medication. According to Life, no explosives were found on the detainee. There was a thermos in his backpack. An Interfax source says that a fake explosive was found in the detainee's backpack.
Earlier it was reported that an unknown person took hostages at a bank branch on Chervishevsky tract street, demanding the issuance of 15 million rubles.
The security forces took the bank's office by storm.
It was also reported that Maksim Karpikov, editor-in-chief of the Nash Gorod newspaper , who was reporting from the scene, was detained at the scene. However, he was wearing a branded vest and a cap.