Columbus students pledge the "Sandy Hook Promise"

Columbus students pledge the "Sandy Hook Promise"
Mark Barden's video message for Champion Middle School

Students at Champion Middle School crowded the school's gym wearing matching shirts Tuesday.

The gray and green tees read, "Start with Hello," a national campaign started by the family members of children and faculty murdered at Sandy Hook Elementary School in Newtown, Connecticut.

"Start with Hello is going to talk to you about social isolation and what do you do when you see someone isolated," said Tyrrea Byrd, who presented the Sandy Hook Promise to the student body.

Sandy Hook Promise is a national campaign encouraging students, faculty and school districts to create an inclusive and kind environment for education, as a way to prevent gun violence in schools.

"I think it’s so important because most of the time you don’t know what they’re going through or how they’re living," said Nyaira Caldwell, a seventh grader who attended the assembly.

One of the founding members is Mark Barden, whose son was one of the 20 children killed on December 14, 2012.

He travels the country making presentations at schools about the Sandy Hook Promise. He couldn't be in Columbus because of weather but sent a video message to be played at Champion Middle.