From the KIRO newsarticle (my bolding)
During the march, Seattle police said
about a dozen people devolved into a rampage of destruction as they marched past the King County Youth Detention Center at 12th Avenue and Alder Street, targeting the site.
Some rioters carried sledgehammers and began shattering workers’ car windows in the parking lot.
At one point, a rioter grabbed a flagger’s stop sign and used it as a weapon.
Protesters through incendiary devices into construction trailers at the new construction site of the juvenile justice facility. It was spray-painted before it was torched
At the same time, a row of construction trailers next door on 12th Avenue were firebombed after some rioters scaled a fence.
The site used to be where the old juvenile detention center stood, but KIRO 7 was told workers at the site were building a parking lot.
Fire crews responded and reported that five construction trailers were on fire. They were destroyed.
King County youth detention officer Daryl Breaux saw her SUV’s smashed windows and slashed tires. Her fellow workers were overcome with emotion seeing the damage to every worker’s car.
“I didn’t deserve this, OK! I’m a hardworking individual, college-educated young lady, Black lady at that! Born and raised in Seattle!” she said."
Twelve people on a rampage are hardly the voice of Seattle. Hopefully they will put every bit as much energy into earning the funds necessary to purchase a new vehicle for Ms. Breaux and replacing the trailers, other cars, and work on the parking lot which suffered from their destructive activities.