By Jamie Roberts All of OJ Simpson’s children were said to be present in the former American footballer’s final days before he died at 76. The former NFL star died on April 11 his family confirmed in a touching social media statement. Now, it has been reported even Simpson’s two youngest children he had with Nicole Brown Simpson were by his side in his final moments. Simpson has four kids; Sydney and Justin whom he shared with Nicole, and his two older children, Jason and Arnelle, whose mother was Marguerite Whitley. It’s not clear exactly when the children were by his side, but sources claim …