Pierre Thomas has the latest on reports that a Kentucky judge was shot and killed inside his chambers; Rachel Scott has details on the scandal surrounding North Carolina's Republican gubernatorial candidate Mark Robinson, who's has denied claims in a new CNN report that allege he made disturbing comments on an online forum over a decade ago; Federal officials' claim that Iranian hackers sent stolen information from former Pres. Trump's campaign to political operatives associated with the Biden campaign; Deputy rescues driver experiencing medical emergency on highway; and more on tonight's broadcast of World News Tonight with David Muir.