 Complete the following sentence: Mile Mrkšić ; 1 May 1947  16 August 2015 was a colonel of the Yugoslav Peoples Army JNA in charge of the unit involved in the : Ogun ti Vukovar nigba Ogun Independence ti Croatia ni 1991. A da a lẹbi fun ko ṣe idiwọ ipaniyan apapọ ti awọn Croats 264 ti o tẹle isubu ti Vukovar, o si ni idajọ si ọdun 20. 