GMA First Look Full Broadcast - Sept. 17, 2025

One week after the killing of Charlie Kirk, authorities say they're investigating more than 20 people with alleged ties to suspect Tyler Robinson on the online messaging platform Discord. Lionel Moise has the details; Nicole D'Antonio reports on President Donald Trump's unprecedented second state visit to Britain with a blend of 21st century diplomacy and royal pageantry; Convicted fraudster Simon Leviev, made famous by the Netflix documentary "The Tinder Swindler," has been arrested again in Eastern Europe; and more on ABC’s GMA First Look. SUBSCRIBE to GMA: https://youtube.com/@GMA?si=ka34lqdEy... SIGN UP to get the daily GMA Wake-Up Newsletter: https://tinyurl.com/yc34mz6t To read the full story and others, visit http://www.goodmorningamerica.com FOLLOW: TikTok:   / gma   Instagram:   / goodmorningamerica   Facebook:   / goodmorningamerica   Threads: https://www.threads.net/@goodmorninga... X:   / gma   Watch full episodes of GMA: https://abcnews.link/8SAXtIX Watch full episodes of GMA3: https://abcnews.link/8aZfnmd Watch full episodes of GMA First Look: https://abcnews.link/LxV2S7H