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

(CNN) Not really a month ago, students at Santa claus Fe High School took a endure against gun violence by strolling out of their classrooms in solidarity with their colleagues across the nation .

With indications that read “Santa Fe Senior high school SAYS #NeverAgain, ” they sitting outside for 17 minutes associated with silence.

Today, the same students had been left reeling from a shooting at their very own school.

Nine students and one teacher had been killed, 10 others were injured, a law enforcement official told CNN.