Dolgikh, who was jailed for 18 years, was previously behind bars on another murder conviction, which is where he got to know Poludentseva as a pen pal.
Witnesses said Dolgikh became “jealous” of her communication with another guest during a boozy wedding party in Chik village, accusing her of “behaving incorrectly”.
Chief investigator Kirill Petrushin said: “He began to punch and kick her outside the house.”
This was just a few hours after they had exchanged vows.
The horrifying attack then continued inside where he “grabbed her by the hair, hit her, pushed her [back] out into the street, where he also continued to strike her body and head”.
Dolgikh dumped the mother-of-one’s body into a nearby ravine.
Throughout the ordeal other guests were reportedly too shocked to step in. However, they did call law enforcement and the groom was detained by the Russian National Guard at the scene.
Petrushin added: “He beat her for a long time, in front of witnesses, and struck her vital organs – in the torso and head.
He “fully admitted guilt during the investigation” but failed to repent, the investigator said.
“He was jealous of her with one of the male guests. It seemed to her husband that she had behaved incorrectly, which caused a scandal.”
A friend said that Poludentseva “truly loved him”.
Petrushin added that Poludentseva knew of her groom’s previous convictions for murder and robbery and believed she could change his ways.
He added: “She did not think that while drinking alcohol or just in a fit of anger, a person like this may go over the limit and commit a serious crime.”