Between September and October 2005, using his salesman job as a ruse, he killed 14 pensioners in Pskov, Chuvashia and most notably the Rostov Oblast, stealing their belongings afterwards.
Kalinin got a job as a salesman to commit his crimes, choosing lonely elderly people as victims, as their children and grandchildren often lived far away.
To confuse law enforcement, he operated in different cities: starting in Pskov, he committed additional murders in Cheboksary, Rostov-on-Don, Morozovsk, Tsimlyansk, Aksay, Bataysk and finally Zimovniki.
They had money, they saved for a rainy day.An employee of the company which Kalinin worked at also recalled one interesting conversation with him:He appeared to be an ordinary person, inconspicuous.
It's necessary to concede life to the young".On 14 March 2014, for the murders of the 14 pensioners, Kalinin was sentenced by the Morozovsk Court of the Rostov Oblast to 19 years imprisonment.