Violence and bloodshed continues in Ukraine, days before the Crimean region votes on a referendum to join Russia.<br/> <br />In an unusually emotional speech, German Chancellor Angela Merkel warned of "catastrophe" unless Moscow changes course.<br/> <br />(SOUNDBITE) (German) GERMAN CHANCELLOR, ANGELA MERKEL, SAYING:<br/> <br />"Ladies and gentlemen, if Russia continues on its course of the past weeks, it will not only be a catastrophe for Ukraine. We would not only see it, also as neighbours of Russia, as a threat. And it would not only change the European Union's relationship with Russia. No, this would also cause massive damage to Russia, economically and politically."<br/> <br />Here in the eastern city of Donetsk, a young man was stabbed to death in violence between pro-Russian and pro-European demonstrators.<br/> <br />. (SOUNDBITE)(Russian) UNIDENTIFIED MAN, SAYING:<br/> <br />"They simply kicked him to death, and I don't know with what exactly they beat him but I took one tool to show you how they resolve d
