pWladimir Klitschko, former boxing champion and brother of the mayor of Kyiv, has described the "worst nightmare" of seeing the aftermath of civilian killings in Bucha.brTalking to Yahoo News France, the former heavyweight champion said: "I've seen many many civilians that have been tortured before they got killed."brHe said his experience was like a nightmare, but where a nightmare is "something that comes at night and goes because there is the next day" the reality of war never stops.