In a major development in the Middle East, Tom Soufi-Burridge reports on the assassination of the mastermind behind the Oct. 7 terror attack in Israel, Hamas leader Yahya Sinwar, killed officials say, by Israeli forces in Gaza; Trevor Ault has new details on the tragic death of former One Direction star Liam Payne and what a preliminary autopsy report shows; Mireya Villarreal has the latest on the delayed execution of Texas man Robert Roberson, who would have been the first in the U.S. to be executed in a case of "shaken baby syndrome." ; and more on tonight’s broadcast of World News Tonight with David Muir.

00:00 Intro
02:06 Architect of Oct. 7 terror attack, Hamas leader Yahya Sinwar, killed by Israeli forces in Gaza
06:14 Harris blasts Trump for calling Jan. 6 a "day of love"
11:00 New details emerge in tragic death of One Direction star Liam Payne
13:24 Judge orders 11th hour delay of execution of Texas man in 'shaken baby syndrome’ case
15:36 Missouri, Kansas, Idaho challenge FDA regulations that ease access to abortion pills
16:12 U.S.: Olympian wanted in huge international drug trafficking ring
16:36 New frost and freeze warnings from Texas to the Northeast
16:55 Mitzi Gaynor, star of ‘South Pacific,’ dies at 93

ABC World News Tonight with David Muir delivers the news that matters most. Watch to get the latest news stories and headlines from around the world.

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