Testimonies of surviving students and film and photographic material to reconstruct the events of the so-called Corpus Thursday Massacre or 'Halconazo'
| Directing | Carlos Mendoza | Director |
| Writing | Carlos Mendoza | Writer |
| Production | Jesús Martín del Campo | Producer |
| Production | Nancy Ventura Martínez | Producer |
| Sound | Gus Reyes | Music |
| Crew | Mario Viveros | Cinematography |
| Editing | Mario Viveros | Editor |
| Editing | Roberto Vázquez Rojas | Editor |