Cesar Laurean's attorney said his client is fighting extradition to the United States. Dick McNeil said the Marine accused of killing a pregnant fellow Marine has filed an extradition appeal in a Mexican court. In September, state officials said a Mexican court approved returning Laurean to the US. Laurean is charged with first-degree murder in the slaying of Marine Lance Corporal Maria Lauterbach, who was eight months pregnant when she was killed late last year. Her remains were found in Laurean's backyard near Camp Lejeune where both Marines served as clerks. Laurean was arrested in Mexico in April.