QUETTA: Unidentified gunmen shot dead a Shia man on Wednesday in the third targeted killing of members of the minority community in the past week, police said. Two attackers sprayed bullets at Ejazul Hasan, an employee of Pakistan Railways, as he went to work in the morning. An angry crowd then took the body to the provincial governor's residence but police using tear gas shells dispersed them, witnesses said.Quetta SSP Parvez Zahoor said that the latest murder appeared to be sectarian and was the third in a week, and the fifth in the last two months. He said it appeared that sectarian militants had changed their tactics, selecting specific targets rather than attempting mass killings.