A not guilty plea was made this morning by a man who threatened to sexually assault a woman at knife point in a downtown Santa Cruz Parking lot Sunday afternoon. Police say former Colorado resident, Gary Oran Smith, who recently arrived into town, is a registered sex offender in Colorado and was not yet required to register in Santa Cruz. Smith pleaded not guilty to charges of assault with intent to rape and assault with a deadly weapon. He is due back in court on february 16th.