ABC World News Tonight with David Muir Full Broadcast - May 11, 2026

Matt Rivers has the latest on the gunman with a semi‑automatic rifle opening fire in broad daylight outside Boston in Cambridge, appearing to shoot at random, sending people running for their lives; Victor Oquendo has details on new concerns about whether the hantavirus could spread more easily than initially thought as one of 18 U.S. passengers evacuated from the luxury cruise ship tests positive for the virus, and another shows mild symptoms; ABC News' Diane Sawyer shares a first look at her new special that highlights the final decade of Richard Simmons' life after he disappeared from the public view; and more on tonight’s broadcast of World News Tonight with David Muir. 00:00 Intro 02:17 Gunman in Cambridge shoots into traffic, injuring at least 1 04:04 American passenger tests positive for hantavirus as 18 arrive in the U.S. for quarantine 07:35 Trump says ceasefire on "life support," declares Iranian proposal a "piece of garbage" 09:27 Probe into runway death at Denver airport after security breach 11:12 Search underway after deadly stabbing at University of Washington in Seattle 11:34 FSU shooting victim's family suing OpenAI, alleges ChatGPT helped gunman plan attack 13:27 Texas man accused of murdering pregnant wife seeks asylum in Italy 14:22 Investigation into deaths of 6 people in rail boxcar 14:39 Raging wildfires scorch thousands of acres in Florida 15:04 Martin Short opens up for the first time on daughter’s death 15:30 Spring & Mulberry voluntarily recalls select chocolate bars over salmonella risk 15:45 London rooftop where The Beatles played last gig to become museum 16:11 Diane Sawyer goes inside hidden world of Richard Simmons 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. Follow ABC World News Tonight on... Instagram: https://www.instagram.com/abcworldnewstonight/ TikTok: https://www.tiktok.com/@abcworldnews X (formerly Twitter): https://twitter.com/ABCWorldNews Facebook: https://www.facebook.com/WorldNewsTonight Threads: https://www.threads.net/@abcworldnewstonight ABC News is your trusted source for breaking news, analysis, exclusive interviews, headlines, and videos: https://abcnews.go.com/ Subscribe to ABC News on YouTube: https://bit.ly/2vZb6yP Watch full episodes on Hulu: http://abcn.ws/3bzvQQn WorldNewsTonight DavidMuir News ABCNews