They waved handmade signs and chanted "No more silence, end gun violence" and "Hey-hey, ho-ho, the NRA has got to go!" until their voices cracked.
At times, they listed mass shootings that have happened over the years across the nation, including a recent school shooting that claimed the lives of 17 people in Parkland, Fla. Some broke down in tears.
Hundreds of students from various public and private schools in the metro area rallied at Central High School in St. Paul before marching to the Minnesota State Capitol Wednesday to press lawmakers to put in place new restrictions on guns.
"We've sat through many school shootings, and we've watched, and we've listened and we've waited for something to change, and nothing has changed," said one of the organizers, Clare Fitzpatrick, a senior from Cretin-Derham Hall High School in St. Paul.
An idea that started with a little more than a dozen students ballooned into a huge crowd. Organizers of Wednesday's protest said they turned to social media to mobilize students from different schools, urging them to wear their student colors and bring their loud voices.
Similar walkouts are planned for other dates in March and April — including the "March For Our Lives" protest organized by the Parkland students and scheduled for March 24 in Washington, D.C.
Micale Stewart-Davis, a 15-year-old Highland Park High School freshman, said he heard about the walkout on social media and came to "support the 17 students who died," a reference to a 19-year-old gunman's attack on Marjory Stoneman Douglas High School in Parkland, Fla.
"I just hope that we can change this. I just hope that everybody ... that they can make this work, and we can change the gun violence. And find out a way to keep guns away from schools," he said.