“This is Artyom Kazantsev, born in 1988, a native of the city of Izhevsk, a graduate of this school,” the Investigative Committee reports.
Investigators conduct a search at his place of residence and study the identity of the attacker, his views and surroundings.
“His adherence to neo-fascist views and Nazi ideology is being tested,” the UK said in a statement.
According to the latest data, the death toll from the shooting at school No. 88 in Izhevsk has risen to 13, including seven children.
21 people were injured, including 14 children.
From 26 to 29 September, mourning for the dead was declared in Udmurtia.