A line of police push protesters up into Capitol Hill during the May Day riots Wednesday, May 1, 2013, in Seattle. By late evening, police reported that 17 persons had been arrested for assault and property damage. Eight police officers were hurt. (Jordan Stead, seattlepi.com)
Protesters scatter as a police-deployed flash bang explodes in the street during the May Day riots Wednesday, May 1, 2013, in Seattle. By late evening, police reported that 17 persons had been arrested for assault and property damage. Eight police officers were hurt. (Jordan Stead, seattlepi.com)
A line of police push protesters up into Capitol Hill during the May Day riots Wednesday, May 1, 2013, in Seattle. By late evening, police reported that 17 persons had been arrested for assault and property damage. Eight police officers were hurt. (Jordan Stead, seattlepi.com)
Protesters stopped traffic with a swarm of bodies during the May Day riots Wednesday, May 1, 2013, in Seattle. By late evening, police reported that 17 persons had been arrested for assault and property damage. Eight police officers were hurt. (Jordan Stead, seattlepi.com)
Police and protesters clash during May Day riots Wednesday, May 1, 2013, in Seattle. By late evening, police reported that 17 persons had been arrested for assault and property damage. Eight police officers were hurt. (Jordan Stead, seattlepi.com)
Passerbys watch local superhero Phoenix Jones, center, and other costumed crime fighters during the May Day riots Wednesday, May 1, 2013, in Seattle. By late evening, police reported that 17 persons had been arrested for assault and property damage. Eight police officers were hurt. (Jordan Stead, seattlepi.com)
Protesters unsuccessfully attempt to pull down a fence on the way to Capitol Hill during the May Day riots Wednesday, May 1, 2013, in Seattle. By late evening, police reported that 17 persons had been arrested for assault and property damage. Eight police officers were hurt. (Jordan Stead, seattlepi.com)
Protesters stopped traffic for a dance party during the May Day riots Wednesday, May 1, 2013, in Seattle. By late evening, police reported that 17 persons had been arrested for assault and property damage. Eight police officers were hurt. (Jordan Stead, seattlepi.com)
One of the first arrests of the day is made at Westlake during the May Day riots Wednesday, May 1, 2013, in Seattle. By late evening, police reported that 17 persons had been arrested for assault and property damage. Eight police officers were hurt. (Jordan Stead, seattlepi.com)
A lone anarchist, center, yells over a field press conference between members of the Seattle Police Department and local media on May Day Wednesday, May 1, 2013, in Seattle. By late evening, police reported that 17 persons had been arrested and eight police officers were hurt. (Jordan Stead, seattlepi.com)
