Violence has spiked in Guerrero state, where Francisco Pacheco Beltrán was killed. Pictured, relatives protest the disappearance of 43 students in the state in 2014. (AP/Marco Ugarte)
Violence has spiked in Guerrero state, where Francisco Pacheco Beltrán was killed. Pictured, relatives protest the disappearance of 43 students in the state in 2014. (AP/Marco Ugarte)

Mexican reporter shot to death in Guerrero state