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Serena Williams posted powerful message on police brutality

Name: Serena Williams posted powerful message on police brutality
Uploaded: 2016-09-27T20:10:16-0400
Duration: 31 s
Description: U.S. tennis star Serena Williams is speaking out against police brutality in the U.S. CBSN's Vladimir Duthiers and Kristine Johnson have more on her powerful post.

U.S. tennis star Serena Williams is speaking out against police brutality in the U.S. CBSN's Vladimir Duthiers and Kristine Johnson have more on her powerful post.