After a series of workshops at Garfield High School, the official MLK Day march starts down Jefferson to 12th, past the Youth Detention Center toward the Federal Courthouse. Photo by Alex Garland.

Police confront a protester wearing a "Don't Shoot" shirt. Photo by Alex Garland.

Police pepper spray award-winning Garfield High School educator and activist Jesse Hagopian for taking a phone call. Photo by Jesse Hagopian.

After the rally at the Federal Courthouse, dozens of marchers link arms and walk down Mercer to connect with those who are locked down on SR 99 and to occupy southbound lanes. Photo by Alex Garland.

A march participant holds a sign with an excerpt from Martin Luther King's "Letter from a Birmingham Jail". Photo by Alex Garland.

Protesters block southbound lanes on SR 99. Photo by Alex Garland.

The Seattle Crimes replaced The Seattle Times in newspaper vending machines along the route of the main march.