A former Guatemalan army commander accused in a 1982 massacre has been extradited from Canada to the United States to face charges he lied about his past to obtain U.S. citizenship. Jorge Sosa was allegedly a commanding officer during the notorious Dos Erres killings, when a U.S.-backed death squad killed more than 200 villagers, including women and children who were strangled, beaten with sledgehammers, and thrown down a well. If convicted, Sosa could be returned to Guatemala to face charges there after serving his sentence.