Sergei Mikhailovich Korogorodnikov was born December 12, 1973 in the city of Mariupol, Donetsk region.
Before the occupation, Sergei earned his money the honest way. However, as soon as the rf invaders came to the Donetsk region, Kogorodnikov decided to change something in his life, and he started with betrayal.
With the help of the occupants, Sergei took the position of deputy chief of The UR of the I.M. Sechenov Iron and Steel Works. Illicha.
When Mariupol is de-occupied, Sergey Kogorodnikov will lose his occupied position and will most likely be expelled from his native city.