Problem with this is that it was edited, in addition to adding music for dramatic effect.
It is very unlikely that he was the murderer, biggest reason was that Goldman fought like hell for his live. The person killing him would have had several injuries.
They never did any examination of Goldman's nails to loom for DNA.
But my comment doesn't mean that he is innocent either.
I believe if he was involved, he paid someone to do it. But the police were so tunnel vision that they never bother to look into that possibility, which is the result of having an agenda.
Also, Dr. Lee the blood splatter experted testefied that OJ didn't do it, but then made a very interesting remark. About perhaps the police should interview OJ's son. Which ofcourse the police never bother to interview him.