Students across US stage walkouts to protest gun violence

Millbrook High School students demonstrate against gun violence outside their school in Frederick County, Va., Wednesday, Feb. 21, 2018, following a school shooting in which over a dozen people were killed at Marjory Stoneman Douglas High School in Parkland, Fla., one week ago. (Jeff Taylor/The Winchester Star via AP)

Gwendolyn Frantz, 17, of Kensington, Md., stands in front of the White House during a student protest for gun control, Wednesday, Feb. 21, 2018, in Washington. (AP Photo/Evan Vucci)

In a wave of demonstrations reaching from Arizona to Maine, students at dozens of U.S. high schools walked out of class Wednesday to protest gun violence and honor the victims of last week’s deadly shooting in Florida.