MAIDUGURI - Gunmen suspected to be from the Boko Haram Islamist militant group killed a traditional Muslim emir in northeastern Nigeria on Friday in an attack on a car in which three leaders were traveling, the state government said. 'The Emir of Gwoza was killed around 9 a.m. today following a bloody attack by some gunmen believed to be members of the Boko Haram,' Borno state government said in the statement. Two sources earlier told Reuters the emir had been kidnapped