NBC Nightly News Full Episode - July 3

Tonight: Dangerous heat is forcing changes to Fourth of July events nationwide. Philadelphia canceled its parade, and Washington temporarily closed the Great American State Fair on the National Mall. Plus, a chaotic scene in Dearborn, Michigan on this holiday weekend after shots rang out at at a suburban Detroit mall. Authorities say two are dead and one injured after an argument sent shoppers scrambling for safety. And an 18-month-old boy was rushed to an Arizona hospital after being found face-down in a swimming pool. New police video shows how the little boy was declared dead, but hours later was found breathing and alive by a medical examiner. And Madison Square Garden was awash with police presence and excited onlookers as the site of wedding festivities for Taylor Swift and Travis Kelce today, with celebrities including Ethan Hawke and Bradley Cooper spotted heading into the famous New York City under tight security.

00:00 Intro 04:21 Extreme heat impacting celebrations for America's 250th birthday 10:31 Two dead in Michigan Mall shooting 12:20 Iran says millions expected at funeral for former supreme leader 14:04 Toddler declared dead at hospital is later pronounced alive 16:17 Taylor Swift and Travis Kelce's Madison Square Garden nuptials draw crowds 18:35 Great Americans: A conversation with Debbie Miller

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