Dhaka (Bangladesh) : Blogger and writer Avijit Roy has been killed and his wife, blogger Rafida Ahmed Bonna, severely injured when unidentified miscreants hacked them at TSC of Dhaka University on Thursday night. Avijit, son of former DU teacher Dr Ajay Roy and also the founder of Mukto-mona Blog, and his wife have been admitted to Dhaka Medical College Hospital in critical condition immediately after the attack. Later, he died while undergoing treatment around 10:30pm, said Shahbagh police station OC Sirajul Islam. Bonna told the Dhaka Tribune: “Two miscreants attacked us with cleaver near TSC intersection around 8:45pm.” Witnesses said some unidentified miscreants swooped on the bloggers and hacked them mercilessly between 8:30pm and 9pm while they were returning from the book fair, leaving them critically injured. OC Sirajul said: “We do not have any clear idea about the attackers. But, the police is suspecting that those, who attacked Humayun Azad, might be behind...