The Russian police suspect that they have arrested the man who killed at least 26 elderly women in the years 2011 and 2012.
The suspect was known as the 'Volga maniac,'
DNA research brought Russian authorities to the now 38-year-old Radik T. His data would have matched footprints and other crime scene patterns.
T. would have proceeded in the same way each time.
He would pretend to be an electrician or plumber at the door, then once inside he overpowered the women and strangled them by means of objects present or his own physical force.
Most of the victims were over 70 years old.
The serial killer almost always robbed his victims, although there were some exceptions, the British newspaper writes.
In addition, he would thoroughly clean crime scenes and always wore gloves, Russian authorities said.
T. killed in Samara, Tolyatti, Izhevsk, Ufa, Kazan and several other cities,
T. is said to have lived in the latter city.
Last year, the Russian Ministry of Justice awarded more than 33,000 euros for the golden tip that would lead to the serial killer.