Tracy Martin, father of slain teen Trayvon Martin, described his "heart-wrenching" loss to Congress on Wednesday, explaining how he and the foundation in his late son's name are trying to turn a ... more 
Tracy Martin, father of slain teen Trayvon Martin, described his "heart-wrenching" loss to Congress on Wednesday, explaining how he and the foundation in his late son's name are trying to turn a tragedy into a positive, constructive conversation. less 
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Wed, Jul 24, 2013 6:08 PM EDT