The arrested boy, from whom information came about the preparation of an attack in Tsaritsyno, was a subscriber to a neo-Nazi Telegram channel and was looking for information about massacres. The FSB said he posted pictures on TikTok that showed him wearing tactical clothing, a balaclava, hat, glasses, headphones and holding what appeared to be an automatic weapon. During the arrest, these things were found in the boy's apartment. Also in the photograph taken in the Tsaritsino museum reserve, there was the inscription "I found a place" in English.