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In April, they walked out to protest school shootings. Today, they were victims of one

CHICAGO, IL - APRIL 20: A student holds up her hands while taking part in National School Walkout Day to protest school violence on April 20, 2018 in Chicago, Illinois. Students from around the nation joined in the walkout against gun violence on the 19th anniversary of the shooting at Columbine High School where 13 people were killed. (Photo by Jim Young/Getty Images)

Not even a month ago, students at Santa Fe High School took a stand against gun violence by walking out of their classrooms in in solidarity with their peers across the nation.

With signs that read “Santa Fe High School SAYS #NeverAgain,” they sat outside for 17 minutes of silence.

Today, the same students were left reeling from a shooting at their own school.

At least 12 people are hospitalized and eight were killed, police say.