In Mexico, protests have erupted over the police killing of Victoria Salazar, a 36-year-old Salvadoran mother of two who had been living in Mexico with a humanitarian visa.

Four police officers from the coastal city of Tulúm have been charged with femicide after an autopsy concluded Salazar’s neck had been broken while she was being arrested. In videos published by Mexican media this weekend, one of the four officers is seen kneeling on Salazar’s back. She’s pinned against the pavement as she cries. Salazar lies on the pavement face down, handcuffed and unconscious, while three other officers watch. Eventually they pick up Salazar’s motionless body and put her in the back of a police vehicle before driving away. This is Salazar’s mother, Rosibel Arriaza, speaking from El Salvador.

Rosibel Arriaza: “I feel indignation. I feel so powerless and angry. … Justice for my daughter.”