A demonstrator holds a placard with Walter Wallace Jr.'s name on it during a protest near the location where he was killed by two police officers in Philadelphia. Mark Makela/Getty Images hide caption
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This undated selfie photo provided by Rickia Young shows her lip. Attorney Kevin Mincey, who represents Young, says she went to retrieve her 16-year-old nephew from the area were a protest was occurring, and put her 2-year-old son in the car to help him fall asleep. Rickia Young/AP hide caption