Mayor of the Ukrainian city Melitopol was abducted by Russian forces and had a plastic bag placed...

That doesn't bode well for other cities under Russian dominion. Nor, I imagine, does it encourage many other mayors to peacefully surrender in order to spare the civilian populations of subsequent cities that find themselves having to make hard decisions.

PO1 William "Chip" Nagel
..."“This is obviously a sign of weakness of the invaders… They have moved to a new stage of terror in which they are trying to physically eliminate representatives of legitimate local Ukrainian authorities,” he said.

“The capture of the mayor of Melitopol is therefore a crime, not only against a particular person, against a particular community, and not only against Ukraine. It is a crime against democracy itself… The acts of the Russian invaders will be regarded like those of Islamic State terrorists,” he said.

Following the incident, the Ukrainian foreign ministry issued a statement castigating Russia over “gross violations of norms and principles of international law, including international humanitarian law, war crimes and crimes against humanity, as well as other human rights violations by the Russian military.”

“Among such gross violations was the abduction of Melitopol Mayor Ivan Fedorov,” the ministry said."