A female demonstrator with the number 43 painted on her face marches in protest for the disappearance of 43 students in the state of Guerrero, in Mexico City, Wednesday, Nov. 5, 2014. Federal police detained yesterday Iguala Mayor Jose Luis Abarca and his wife, Maria de los Angeles Pineda, who are accused of ordering the Sept. 26 attacks on teachers' college students that left six dead and 43 still missing. (AP Photo/Marco Ugarte)