There is only one future for those terrorists: retribution and oblivion – Putin

But you're a Gov overlord with command over a military? How are you, NATO, or the global USSA empire of communism any better? You do the same thing to people. Your glorified police, national guard, military, and security are completely incompetent as well. They choose those easy income roles because they are too low IQ to find a real man's trade and produce something valuable.
So some rich people got attacked at a concert hall while billions of poor people can't afford food and rent? Oh darn. Welcome to life as a human. Sometimes the world the ruling class created comes back to get them. If your country has any military and Gov at all you can call this Karma. I don't care if it's Russia, the cucked Ukraine, or communist USSA. Eventually all of the evil people get theirs and I'm sure this concert hall was filled with entitled ruling class Sloths. The same Sloths who created the squalor and the terrorist who is no different than an average military soldier or police in shiny uniform. Gov is also terrorism. Camera surveillance around the planet on the common people is also terrorism upon them. Welcome to the dreadful experience of life with humans. That's why you should avoid public places with all the other shallow idiots seeking public attention and praise. Their Greed created mass poverty which led to a mentally ill person committing random violence. You should try living in the USSA with insane people who listen to rap music and shoot each other in passing cars. Just because you wanted to go get groceries you have to witness your world turn into a rap ghetto. So why should anyone care if some snobby ruling class types got attacked at a ruling class event where they all dress like insane Hunger Games ruling elites? I bet these Russian ruling class elites send all their middle class jobs to China as well. Creating the poverty and increase in crime.