He had helped to defend the town in 1991 when local Serbs rebelled against Croatia 's declaration of independence .
After volunteering for the Croatian Army in 1991 , according to reports , in 1992 he was ordered to round - up Croatian Serbs for execution which he refused .
He had helped to defend the town in 1991 when local Croatian Serbs rebelled against Croatia 's declaration of independence .
After volunteering for the Croatian Army in 1991 , according to reports , in 1992 he was ordered to round - up Croatian Serbs for execution which he refused .