Tonight on the "CBS Evening News": It's a prince for the Duke and Duchess of Cambridge; Pope Francis' motorcade is swarmed in Rio de Janeiro; suspected serial killer arrested in Cleveland; and writer ... more 
Tonight on the "CBS Evening News": It's a prince for the Duke and Duchess of Cambridge; Pope Francis' motorcade is swarmed in Rio de Janeiro; suspected serial killer arrested in Cleveland; and writer inundated with images of bliss as people tweet life's happiest moments. less 
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Mon, Jul 22, 2013 8:46 PM EDT