Putin is seriously deluded at this point, as are his hanger-ons. I know Bluesteven, ramacca and Davids will bravely, morally, and courageously say their ride-or-die was just pre-emptively taking out future soldiers at the kindergarten.
Putin just got played. Bad. When Russia illegally built the bridge after invading Crimea, they did so because they had to in order to really reinforce their control over it. Hitting that bridge takes out the only supply line Russia now has to the whole south of Ukraine due to how bad they are at everything. And Putin, like a fool, responded not by hitting the military targets that are about to roll Russia up, or by taking out logistics points/ammo dumps/fuel depots, but instead went to kill some civilians as revenge. So in one swoop he failed to make any impact on Ukraines ability to wage war, while giving Ukraine that much more motivation, and turning even more of the world against him, while wasting some of the few munitions they have left. It has a 0% impact on Ukraines leadership, and the military. Hes desperately grasping for straws at this point in the hope that someone believes him and the world just capitulates because its all he has left.