jason rosenbaum, st. louis public radio, thank you for joining us. >> thank you. >> woodruff: iraq's recent elections were in large part driven by a protest movement that erupted two years ago, denouncing government corruption and lack of services. prime minister mustafa al khadimi is vying for a second term while trying to balance relations with the u.s., which still has 2500 troops in iraq, and iran, which supports powerful militia in iraq. but many iraqis are disappointed that kadhimi hasn't delivered on promises to rein in armed groups linked to iran, or to prosecute the killers of protesters who rose up against the government in 2019. special correspondent simona foltyn investigated the case of one prominent protester assassinated in may and what it tells us about iraq's deadly politics. >> reporter: as dusk falls over karbala, home to some of the holiest sites of shia islam, a handful of people gather at a monument set up to commemorate slain anti-gernment protesters and activists. marwan al wazni's