Ike Ejiochi reports on the relentless heat wave scorching huge portions of the U.S., with the Northeast seeing record-setting high temperatures over the weekend; Morgan Norwood has details on life-threatening rip currents affecting the Atlantic and Gulf Coasts, after several people have drowned off beaches since Thursday; Jaclyn Lee has the latest on the deadly mass shooting at an Arkansas grocery story that killed four, with authorities now saying the incident appears to be a random act of violence; and more on the and more on tonight’s broadcast of World News Tonight.

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00:00 Intro
02:19 Relentless heat wave from coast to coast
04:47 Tracking severe weather and high temperatures across the country
05:40 FBI investigating cause of deadly New Mexico wildfires
05:59 Life-threatening rip currents in Atlantic and Gulf Coasts
07:51 Authorities say mass shooting at Arkansas grocery store appears to be random act
09:56 Joe Biden and Donald Trump prepare for first presidential debate
12:30 Israeli PM Netanyahu repeats claims U.S. is delaying arms deliveries to Israel
14:25 At least 9 killed in apparent coordinated attacks in Russia’s Dagestan region
15:27 Over 1,300 deaths at Hajj pilgrimage amid searing heat
16:03 Ten wounded in Columbus, Ohio mass shooting
16:19 NYC man accused of trying to drown his two children at Connecticut beach
16:39 Suspects in custody after officers shot in Michigan and Pennsylvania
17:07 Husband of woman killed by drunk driver on wedding night receives settlement
17:28 Sha’Carri Richardson qualifies for Olympics in 100-meter dash
17:47 Fishermen rescue dozens of dogs from Mississippi Lake
18:12 America Strong: Fire Dept. in California welcomes 15 babies in one year

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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