There they castrated him and tortured him for hours with such cruelty that one of the lynchers was reported to have thrown up . Isabel Wilkerson : Trayvon Martin case not first Florida killing with racial overtones and no arrest . The shooting death of a black teenager in Sanford, Florida, has sparked protests across the country over police treatment of minorities. Wilkerson : Florida has been part of the South and its vigilante-enforced racial caste system . The difference in Martin case is people of all backgrounds are outraged , Wilkerson says .
Isabel Wilkerson : Trayvon Martin case not first Florida killing with racial overtones and no arrest . The shooting death of a black teenager in Sanford, Florida, has sparked protests across the country over police treatment of minorities. Wilkerson : Florida has been part of the South and its vigilante-enforced racial caste system . The difference in Martin case is people of all backgrounds are outraged , Wilkerson says .