Demonstrators do push-ups Friday as others block motorists along Chicago's Michigan Avenue as they protest the shooting of Laquan McDonald who was killed by a police officer in 2014. Joshua Lott/Getty Images hide caption

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Robert Lewis Dear, 57, is accused of attacking a Planned Parenthood clinic in Colorado Springs and killing three people, including a police officer. Nine others were injured. Colorado Springs Police Department hide caption

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The Amazon Fulfilment Centre prepares for Black Friday this year in Hemel Hempstead, England. Black Friday has now surpassed Cyber Monday as's busiest day. Jeff Spicer/Getty Images hide caption

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