Former Pakistani prime minister Benazir Bhutto was gunned down Thursday by an attacker who then blew himself up, killing at least 20 others. The assassination of Bhutto sparked riots across the country, with at least six people reported killed in the ensuing violence. Bhutto had just finished addressing thousands of supporters in the garrison city of Rawalpindi, about 18 kilometres south of Islamabad, when a man stepped from the crowd and fired. Bhutto was hit in the neck and chest. The killer then blew himself up. Bhutto died around 6:16 p.m. local time (8:16 a.m. ET) at Rawalpindi General Hospital after undergoing emergency surgery. Her body has been flown to the southern Pakistani province of Sindh, where she'll be buried in the family graveyard alongside her father, Zulfikar Ali Bhutto, on Friday. In a brief televised address, Pakistani President Pervez Musharraf condemned the attack and announced three days of...