With Kalashnikovs and sniper rifles, Ukrainian special forces fire on Kiev's Independence Square.<br/> <br />New video has emerged, showing the unit last Thursday during the bloodiest day of clashes.<br/> <br />As the gunshots crackle and echo through the city, the security forces maneuver into position.<br/> <br />Last week's clashes left 82 people killed.<br/> <br />It was that very bloodshed that led to the arrest warrant for impeached president Viktor Yanukovich.<br/> <br />The governor of the Russian-speaking city Donetsk said the embattled president must face responsibility.<br/> <br />(SOUNDBITE) (Russian) DONETSK GOVERNOR ANDRIY SHISHATSKIY SAYING:<br/> <br />"We need to face the truth. A lot of mistakes, including tragic mistakes, have been made. And the most horrible thing is they led to people's deaths. For this the president will undoubtedly be taken to account."<br/> <br />Back in Kiev, mourning continues.<br/> <br />Thousands have passed through Independence Square - also known as Maidan - to honor the dead.<br/> <br />O
