Sir, you labour under a misapprehension.
Fact: I site CCTV footage, and state that it cannot be held inferior to so called eye witness accounts
Fact: I quote eyewitness accounts precisely to show how unreliable they are, NOT to support my arguments. This is because depending on what "media source" or account you read, the versions are startlingly different.

As a non SA living here, I took particular pains to read accounts from both sides and watch the full footage before drawing my conclusion, perhaps thinking that I could be more objective as I lack historical context. Here's what I found:
"Fact": The black girl complained three times previously go her mum she was being bullied by the white. Mum banned her from the play area but she snuck back and hit the white child. Yet now I also hear, long after that initial "fact" was common knowledge, another "fact", ie the white child complained three times previously.
"Fact": At no point did the child's mother desvribe the "8 year old boy"