They have not shown me a hair or a nail from my daughter . Mexico : One victim 's mother suspects authorities of the arrests . Mexico City 's prosecutor says 12 kidnapped teens were killed . The motive was revenge , Mexico City 's prosecutor tells reporters . The teens ' kidnapping in broad daylight has shaken Mexico 's capital .
Mexico : One victim 's mother suspects authorities of the arrests . Mexico City 's prosecutor says 12 kidnapped teens were killed . The motive was revenge , Mexico City 's prosecutor tells reporters . The teens ' kidnapping in broad daylight has shaken Mexico 's capital .