In violence across Iraq on Friday, at least 16 people were killed or found dead in apparent sectarian slayings. In the latest of a series of attacks on Iraq's most powerful Shi'ite political party, gunmen killed the organization's leader in a city south of Baghdad. Mohammed Hashim, leader of the Supreme Iraqi Islamic Council's party operations in Iskandariyah, was shot to death as he walked near his home, police said. Iskandariyah is 50 kilometers south of Baghdad in a mixed Sunni-Shi'ite region.