Wisconsin state investigators -- not local police -- will investigate Tony Robinson 's killing by officer . The Milwaukee County district attorney has said he is investigating the shooting as a possible hate crime and that his office would be looking into whether there was any racial motivation behind it.
Wisconsin state investigators -- not local police -- will investigate Tony Robinson 's killing by officer . Wisconsin and Connecticut are the only states that require independent probes in such cases . 12 states have pending legislation requiring outside entities to examine police involved shootings .