It comes as a shock to realise that it is nearly 20 years ago, on 3 October 1995, that OJ Simpson was acquitted of murdering his ex-wife Nicole Brown Simpson and her friend Ronald Goldman. The trial ran for months, mesmerised millions, and was followed obsessively on television across America – and around the world. This saga, and its undertones, found a permanent home right on in America’s racial fault line. In South Africa, the Oscar Pistorius saga is starting to carve a monumental space for itself. Looking back, how similar are these two big celebrity crimes? By J BROOKS SPECTOR.