In November 2010 , Croatian President Ivo Josipović laid a wreath at the graveyard of the massacre victims . He said , " those who are left behind those victims deserve our apology " and stated that " a crime has no justification ; revenge can not be justified by a crime . " The wreath-laying ceremony came just after Serbian President Boris Tadić 's visit to Vukovar to commemorate the Croatian victims of the 1991 Vukovar massacre . Part of the Croatian public saw the two visits as key to the reconciliation process , while another part condemned Josipović 's comments as an attempt to belittle the Vukovar massacre and an attempt to " relativize the guilt for crimes committed during the war . "
Vukovar massacre
Vukovar massacre
Paulin Dvor massacre