A group of 'unknown men' on Sunday gunned down Mufti Qaiser Farooq, one of the most wanted leaders of the Pakistan terror outfit Lashkar-e-Taiba (LeT), on Sunday. It is widely known that Qaiser Farooq, one of the founding members of LeT was a close aide of Hafiz Saeed who was the mastermind of the 26/11 Mumbai terrorist attack.