KARACHI: Jamiat Ulema-i-Islam-Samiul Haq (JUI-S) leader Mufti Usman Yar Khan along with his driver and a personal guard was gunned down by unknown miscreants on Karachi’s Sharae Faisal, while a separate attack killed three people who worked for ExpressNews television channel Friday night, DawnNews reported.Police said another person was injured in the attack on Mufti Usman that took place near Awami Makaz.A spokesman for Karachi police said attackers sprayed bullets at the car of the provincial deputy chief of JUI-S, a religious party headed by Samiul Haq known in the West as “father of the Taliban”.