Footage of mass graves, burned-out cars and dead bodies lining streets on the outskirts of Kiev prompted shock and outrage among Western leaders on Sunday, with many accusing Russia of war crimes as the reality of its occupation became apparent. Ukraine says it has now recovered the bodies of 410 civilians from the suburban towns of Bucha and Irpen just outside the capital Kiev following the withdrawal of Russian troops. EU Council President Charles Michel described the civilian killings as a massacre and announced plans to tighten sanctions on Russia. British Prime Minister Boris Johnson prom…