` ` Extremists on both sides '' are stirred up , the Southern Poverty Law Center says . The New Black Panther Party offers a reward for Robert Kennedy 's capture . One group says ` ` white nationalists are trying to inject their poison '' into the country . Kelly McBride , senior faculty member for ethics at Poynter Institute , a nonprofit school for journalists in St. Petersburg , Florida , said she is n't surprised that extremist talk has emerged in this case . Anonymous Internet comments fan the flames , experts say .
` ` Extremists on both sides '' are stirred up , the Southern Poverty Law Center says . The New Black Panther Party offers a reward for Robert Kennedy 's capture . One group says ` ` white nationalists are trying to inject their poison '' into the country . Anonymous Internet comments fan the flames , experts say .