Matt Gutman reports after Los Angeles County DA George Gascón recommended resentencing Lyle and Erik Menendez, who have served nearly 35 years for killing their parents; Mary Bruce has the latest from the campaign trail with 12 days until the election as former Pres. Trump vowed to fire special counsel Jack Smith 'within two seconds' if re-elected; Mola Lenghi has new details as McDonald's says it's identified the supplier of onions linked to a multi-state E. coli outbreak involving Quarter Pounders, and other restaurant chains take action; and more on tonight's broadcast of World News Tonight with David Muir.