A policeman was killed in a shootout and another man murdered by two attackers riding a motorcycle in Islamabad on Friday.A police team from Chakwal raided a house in the federal capital's Jhangi Syedan’s Dhok Malyar area where a suspect, Imran Saleem, was living with his family.The suspect opened fire on police, killing ASI Akhtar Hayat. Police officials said the ASI had suffered a bullet wound to his head.Saleem, along with his brother and father, escaped and is still at large.Later in the day, Haji Zaraqat was shot dead by two men riding a motorcycle after he left his car near a mosque on Park Road, in Chattha Bakhtawar where he went to offer Friday prayers.Police believe the 32-year-old man was murdered over a personal enmity.The victim’s family maintained that a rival group was responsible for the attack.Police officials said one of Zaraqat's brothers was already in jail in connection with a murder and the victim too had served time in prison.