Why do they record that....and post it???
Indeed, why would a soldier broadcast a war crime, live, to the world?
On many levels this if foolish:
1) If he is captured, he can expect to receive gruesome treatment from the Ukrainians
2) His idiotic actions make it much more dangerous for other Russian servicemen on the front, if they are made prisoners of war.
3) This tarnishes the tradition and reputation of a Russian soldier/officer.
4) It sends a signal to the enemy of weak discipline and control in our formations.
The above are some strong reasons not to record, and not to post such videos. So why would one do it anyway? Looking at the incredible record of brutality shown by the Mexican cartels and ISIS can be educative.
1) In normal, civilian society the government holds the monopoly on violence. The violence is present, but it need not be overly brutal, because most members of society understand that it is useless fighting the government, and sooner or later comply.
2) ISIS and the Cartels are not able to resort to court or police protection. Instead, they seek to protect themselves through instilling fear in their enemies. In practice, this usually leads to an ever expanding spiral of brutality, but occasionally it does provide a ceasefire.
3) War is a little bit like that world of criminals, in that there isn't any real mechanism to settle grievances with the other side by means of mediated talks (to the top echelon yes, but not for soldiers).
4) Wagner is a unique organization, and this violinist belongs to Wagner. These are the people that made the sledgehammer famous.
5) Volunteering for the war in Ukraine is already illegal in Georgia, and it's government goes to great lengths to prevent people from going. So it's no use to talk to the official Georgians. They are already doing all they can.
6) One of the few options that are left is to dissuade Georgians from traveling to Ukraine to kill Russians, by a policy of terror towards the mercenaries that are already in the field. Brutal, but arguably the most efficient approach.