white supremacist - n. person who believes whites are better than blacks and other races
counter protesters - n. people protesting a protest by a group with different opinions
disturbing - adj. very troubling
credible - adj. believable
accountable - adj. required to be responsible for something
uncomfortable - adj. making a person feel bad or uneasy
vehemently - adv. very strongly
associate - v. connected to someone or something