a . k . a . ▁Ivan ▁Mas lij ), ▁was ▁recognized ▁in ▁Rak łow ice ▁near ▁W roc ław ▁by ▁Polish ▁surv iv ors ▁of ▁mass ac res ▁committed ▁by ▁Ukrain ische ▁Hil f sp ol ize i ▁in ▁the ▁towns ▁of ▁Sz cze pi at yn , ▁D yn iska , ▁T arn osz yn , ▁Niem st ów , ▁and ▁Kor cz ów . ▁He ▁was ▁sent enced ▁to ▁death ▁in ▁Poland ▁in ▁ 1 9 7 8 . ▁ ▁On ▁ 1 3 ▁November ▁ 1 9 4 2 , ▁members ▁of ▁the ▁Ukrain ische ▁Hil f sp ol ize i ▁ro bb ed ▁and ▁executed ▁ 3 2 ▁Pol es ▁and ▁ 1 ▁Jew ▁in ▁the ▁village ▁of ▁Ob ór ki ▁( pl ), ▁located ▁in ▁pre war ▁Wo ły ń ▁Vo iv odes hip . ▁After ▁the ▁crime ▁the ▁village ▁was ▁burn ed ▁down . ▁On ▁ 1 6 ▁December ▁ 1 9 4 2 , ▁the ▁Ukrain ian ▁polic emen , ▁led ▁by ▁Germ ans , ▁killed ▁ 3 6 0 ▁Pol es ▁in ▁Je z ier ce ▁( former ▁powiat ▁Riv ne ). ▁ ▁In ▁L viv , ▁in ▁late ▁February ▁and ▁March ▁ 1 9 4 4 , ▁the ▁Ukrain ische ▁Hil f sp ol ize i ▁arrested ▁a ▁number ▁of ▁young ▁men ▁of ▁Polish ▁national ity . ▁Many ▁of ▁them ▁were ▁later ▁found ▁dead ▁and ▁their ▁Identity ▁documents ▁st olen . ▁The ▁Government ▁De leg ation ▁for ▁Poland ▁started ▁negoti ations ▁with ▁the