HOUGHTON, Mich. (WWJ/AP) – A former Michigan Technological University student who was accused last year of threatening on social media to shoot black students is suing the school.

Matthew Schultz was a junior at the Upper Peninsula school when he was accused of making the threatening comments on a social media site called Yik Yak, an anonymous message board where users can post comments to a specific community. Police say the threats were directed at members of Michigan Tech’s black community.

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The federal lawsuit says Schultz wanted to note “the ridiculous nature” of threats at another school, so he posted “Gonna shoot all black people …. A smile tomorrow,” with a smiling emoji. According to the lawsuit, Schultz meant he was going to smile at black people.

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A disturbing the peace charge was eventually dismissed.

The school says Thursday it plans to vigorously defend itself in the lawsuit and is working to keep campus safe.

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