Authorities comb gully for remains of 43 missing Mexican students

Forensic experts combed a gully in southern Mexico for the remains of 43 missing students, as frustration mounted among relatives over the lack of answers more than a month into the investigation.

Workers in protective gear focused on a 25-by-25ft-square area below the ridge of the municipal dump in Cocula, a town in Guerrero state where police have been arrested and linked to the September 26 disappearances.