Craig Arnett said Simpson, 70, was not a "problem child" during the three years he observed him in prison as Simpson prepares to speak at his own parole hearing that could set him free after nine years at a Nevada prison. <br /><br />SUBSCRIBE to ABC NEWS: <br />Watch More on <br />LIKE ABC News on FACEBOOK<br /><br />FOLLOW ABC News on TWITTER:<br /><br />GOOD MORNING AMERICA'S HOMEPAGE:
