i want to speak to someone senior in the badr organization. so i travel to the northern city of erbil. haitham al mayahi is the political adviser to the head of badr. he says they don't condone abuse of sunnis, but harsh treatment of isis suspects is justified. >> to kill an isis member or to torture an isis member, this is abuse to you? to me it's not. this is the right way because he's a murderer, he has to be tortured and killed. we are a country who are facing car bombing every day, suicidal every day. if this happens to you, would you wait for a trial? >> navai: i've spoken to a badr organization member who told me he knows colleagues of his who kidnap and kill. >> if you are very sure about that, that there are people who are kidnapping and killing and they are related to badr, i assure you we can go together now, we'll take those people to justice, because i am very sure we not allow any mistakes in badr. >> navai: i have even spoken to a shia member of the federal police in diyala, and he says that badr organization members have infiltr