Forty-three college students from Mexico are missing and feared dead, and hundreds of people in San Francisco are calling for answers.
The group demonstrated in the city's Mission District Saturday and demanded justice for the students.
They disappeared Sept. 26 after a violent clash with police during a political protest in Mexico.
"These were students becoming teachers," organizer Frank Lara said. "I mean, we're having a case where students in their own right, and especially in Latin American schools, students get a right to express themselves as schools are the foundation for our really radical education, to have free form of thought, which is very different from here."
"But over there, when these students were expressing themselves, you saw that a dissident voice is actually going to be crushed," he added.
The Mexican government claimed gangs killed the missing students then burned their bodies.