Rawalpindi – Mumtaz Qadri, the security guard who killed late Punjab governor Salmaan Taseer, has been hanged to death in Adiala Jail, Rawalpindi. Qadri had filed a mercy plea before President Mamnoon Hussain after Supreme Court maintained his conviction in October last year. Rumours started pouring in earlier today as his supporters started Twitter trend to call for protest against his expected hanging.