The collective project Rexiste, famous for writing “The state did it” in Mexico City's Zocalo Square in October 2014, has introduced a new member of its anonymous family: the flying drone, Droncita.

On the first anniversary of the Iguala mass kidnapping, Droncita's first act was to graffiti a portrait of Mexican President Enrique Peña Nieto, demanding his resignation. “It's time to change everything,” the graffiti declares.

The 43 student teachers from Ayotzinapa, who disappeared on September 26, 2014, after they were attacked by local police, remain missing. Authorities concluded that a cartel killed the young people and incinerated their bodies, but parents of the victims don't believe the official account.

The Ayotzinapa case has shone a spotlight on the violence and corruption rife in Mexico — and Peña Nieto's failure to fix the deadly problem.

Watch the video with English subtitles above.