Outside the boarded-up Louis Vuitton store in downtown Portland, a portrait of a haloed woman surrounded by chalk handprints and multicolored flowers spans several sheets of plywood, sending the message that "none of us are free until all of us are free."

The mural, drawn by 15-year-old twins Brady and Mia Creswell, depicts Breonna Taylor, a Black woman who was shot and killed in her home by Louisville Metro Police Department officers in early March. It's one of dozens of murals that cover the exterior of the Apple store and other buildings in downtown Portland in support of the Black Lives Matter movement.