By Imtiaz Ali in Dawn, October 9th, 2023KARACHI: A policeman was shot dead by unidentified persons when he was returning home after visiting a graveyard on the outskirts of the city on Sunday, police and his relatives said. The SITE-Superhighway Industrial Area police said Sub-Inspector Amir Ali, 52, who was in plain clothes, was shot dead by unidentified gunmen ‘due to unknown reasons’ near Chakar Hotel on the M-9 motorway….. Talking to reporters, SSP-East Syed…