With the financial markets all closing down, Rachel Scott reports on Pres. Trump forging ahead with massive tariffs set to take effect at midnight, including a 104 tariff on all Chinese products imported to the U.S.; Victor Oquendo has the latest on the investigation into the devastating roof collapse at a nightclub in the the Dominican Republic that left at least 66 people dead, including former MLB pitcher Octavio Dotel; Trevor Ault has details on the protests that erupted in Idaho after police officers opened fire on a teen with autism while responding to a 911 call from a neighbor reporting what they described as a man who seemed drunk threatening two people with a knife, authorities said; and more on tonight’s broadcast of World News Tonight with David Muir.