When they are part of a huge mob, many of whom are armed and attacking police, all kinds of people can get shot. Remember, police were shot in the fracas as well.
Now when are you going to admit that the police in Ukraine showed extreme restraint in dealing with people who were literally setting them on fire for months until things blew up at the end?
What the Russian timeline about the protests, anyway? I note that our Russians here avoid mentioning it whatsoever. Were the Maidan protests violent from the beginning? If not, how many months did they go until they became violent?