A Taliban veteran of Guantanamo Bay who became one of Pakistan’s most-wanted rebel leaders killed himself with a hand grenade Tuesday after he was cornered by security forces, officials said. The death of Abdullah Mehsud, a stout, round-faced man in his early 30s who lost a leg years ago fighting for the Taliban, was a boost for Pakistani authorities under pressure from the U.S. to crack down on Taliban and al-Qaida militants fighting on both sides of the Afghan border. Full Story