In Mexico City, thousands of protesters marched Monday to mark four months since the disappearance of 43 students in September. The students were allegedly abducted by local police working with drug gangs, and according to one report, possibly federal forces, as well. Mexican authorities have said the students were incinerated at a garbage dump by drug gang members, but forensic experts say they have been unable to match incinerated remains found in a dump with the DNA of the missing students. Only one student’s remains have been positively identified. Hilda Legideño, the mother of missing student Jorge Tizapa, said she did not trust the government’s claims.

Hilda Legideño: “They are not our children. These tests they are doing, we don’t believe in them. Our children are alive, because the police took them, and the government knows where our children are. We don’t believe in these tests. Scientists have squashed the version of the attorney general’s office, and we don’t believe them.”