The images of civilian casualties in Butja, several with tied hands and bodies with signs of torture, have shaken the world.
On Tuesday, the Ukrainian intelligence service pointed out Russian soldiers who they believe are guilty of war crimes.
The list includes soldiers who belong to the 64th motorized shooting brigade in the Russian army.
It is the unit that occupied Butja until March 31, when Ukraine regained control of the city outside Kyiv.
The unit is usually based in Khabarovsk in Siberia, in the far east of Russia.
Blessed by the priest
Inform Napalm, a Ukrainian news site using open source data, recently revealed the identity of the lieutenant colonel in the 64th Motorized Shooting Brigade.
News media have given Azatbek Omurbekov the nickname "the butcher in Butja".
In 2014, he was rewarded by Defense Minister Bulgakov for his efforts in the Russian defense.
Just before he was placed in Ukraine, he was blessed by an Orthodox priest, reports The Times.
- History shows that we fight most battles with our souls, Omurbekov said after the ceremony, according to the newspaper.
According to the Russian Ministry of Defense, the battalion regrouped on March 30 and is now in Belarus.
However, intelligence indicates that the unit is on its way to Belgorod in western Russia to regroup and return to other locations in Ukraine, reports Newsweek, among others.
The International Criminal Court (ICC) is one of the units now investigating whether war crimes and crimes against humanity have been committed in Ukraine.
They have the opportunity to prosecute individuals for war crimes.