Obama: If I had a son he'd look like Trayvon Martin

      |President Obama on Friday weighed in on the controversy surrounding the shooting death of Trayvon Martin, in Sanford, Fla. Neighborhood watch captain George Zimmerman shot the teen last month. He has not been arrested or charged. Obama said this case is "obviously a tragedy" and it's "absolutely imperative to investigate every aspect" of the shooting.

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