ABC World News Tonight with David Muir S2024E231 - Episode 231

On the final night of the Democratic National Convention, Mary Bruce has details on Vice President Kamala Harris' historic speech as she becomes the first woman of color to accept a major party's nomination for president; Pierre Thomas reports as law enforcement take an Arizona man into custody who allegedly threatened to kill former Pres. Trump on social media; James Longman has the latest after dive teams recovered the body of the British tech tycoon whose superyacht sank off the Sicilian coast; and more on tonight's broadcast of World News Tonight with David Muir.