As is to be expected, the article isn't specific on that point. One is left to assume that it is someone with extreme antiwhite views. Considering the recent race riots in Australia, one might naturally assume that it was someone of a similar perspective as the antiwhite rioters that were recently in the news.
Doing a FR keyword search of "Sydney Riots" might provide some perspective.
"One is left to assume that it is someone with extreme antiwhite views."
I have a problem with making assumptions as to who the taunters were based on an article that is unclear with its information. That's really not a smart thing to do. I have already read about the race riots on FR. I'm going to leave this Andre Nel thing alone until I see the specifics. Many a black person has been accused of race baiting when making assumptions like this? Is it possible this is an example of race baiting on the opposite spectrum?