Head driver to Governor Umaru Al-Makura of Nasarawa State, Abdullahi Mairuwa, has been slain by some unknown gunmen. Late Mairuwa was assassinated on Saturday morning near Tudun Adabu along the Obi-Keana-Awe road. The deceased was on his way to his village in Keana local government area of the state when he was killed. The gunmen…