There's a lot of circumstantial evidence tying Nicole Brown at least indirectly to organized crime and drug dealing, one of the prevalent theories that seemed credible was about the restaurant she was invested in (and Goldman worked at) dealing cocaine and/or laundering money. At the bare minimum she was involved with people through investments that were involved in organized crime. OJ was as well without question. That's enough for me to think the whole thing was likely at least partially a charade.