Researcher says , ` ` I ' m not afraid . I ' m angry '' Anti - animal rights activists launch new round of accusations against researcher . Animal Liberation Front posts online a claim of responsibility from group . The researcher used the monkeys for his addiction studies .
Researcher says , `` I 'm not afraid . I 'm angry '' Anti-animal research activists make new round of threats against researcher . Animal Liberation Front posts online a claim of responsibility from group . UCLA researcher uses vervet monkeys for drug addiction studies .