ridha hajwal is also from karbala and has stayed in this safe house for five months. he has been threatened by the same men accused in wazni's killing. >> ( translated ): even when ehab was alive, i used to receive a lot of threats. we couldn't tell which threat was serious. but after ehab was killed, the targeting became real. >> reporter: that's because hajwal possesses evidence against qassem musleh, the previously detained militia commander, and his brother ali. he secretly recorded a conversation documenting some of their threats to kill wazni. but again, the judiciary didn't act. hajwal sees this as proof that the armed groups backing the two brothers are more powerful than the state. >> ( translated ): this is the iraqi state. in fact, it is not even a state, because the basis of a state is that there are independent institutions. we don't have independent security or judicial institutions. >> reporter: the newshour has found that there are several arrest warrants that have not been executed in wazni's case. that includes a warrant for qassem musleh's brother a