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This shooting came four days before Saturday's March for Our Lives in nearby Washington, D.C. Thousands of students are expected to descend on the nation’s capital to rally for gun control and safer schools in the wake of the deadly Feb. 14 school shooting in Parkland, Florida.

Less than one week before Great Mills High School faced its own shooting, its students were among the thousands participating in the National School Walkout, according to local news outlet TheBayNet.com.

The walkout, which marked a month since the Parkland massacre, was organized as a call on Congress to tighten gun laws.

ABC News' Dee Carden and Nataly Pak contributed to this report.

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