Complex sentence: Khan Said alais Sajna, also known as Khan Syed Mehsud, is a new commander of the Tehrik-i-Taliban Pakistan or Pakistani Taliban after earlier leader Hakimullah Mehsud was killed in a US drone strike on November 1,2013.
Split into simpler sentences: Khan Said alais Sajna, also known as Khan Syed Mehsud, is the current leader of the Tehrik-i-Taliban Pakistan or Pakistani Taliban. He became the leader after earlier leader Hakimullah Mehsud was killed in a US drone strike on November 1,2013.