Former Denver Broncos cornerback Perrish Cox told a judge Thursday that he wouldn't testify at his sexual assault trial, a decision that came after jurors saw video of him expressing shock that the alleged victim was pregnant and that he was accused of raping her. Cox is accused of sexually assaulting a woman in his apartment over Labor Day weekend in 2010. The woman testified Wednesday, saying she had a fuzzy memory of what happened that night and suspected she had been drugged after waking up feeling sick the next day