(VIEWER DISCRETION ADVISED: GRAPHIC CONTENT) Prosecutors played smartphone video showing the interaction between Nicholae Miu and several teens on the Apple River in western Wisconsin in July 2022. Isaac Schuman was stabbed to death and four others were wounded. Miu is charged with first-degree intentional homicide and attempted first-degree intentional homicide. WARNING: Video contains graphic language and images. Welcome to the KARE 11 News YouTube channel. Subscribe to our channel for compelling and dramatic storytelling, award-winning investigations, breaking news and information you can use. Text your photos, videos and news tips to 763-797-7215. » Subscribe to KARE 11 on YouTube: https://www.youtube.com/user/KARE11?sub_confirmation=1 » Watch more KARE 11 video: https://www.youtube.com/user/KARE11/v... » Visit KARE11.com: http://www.kare11.com/ » Download our app! https://www.kare11.com/appredirect/ » Get KARE 11+ for Roku & Fire TV: https://www.kare11.com/roku » Find KARE 11 on Facebook: https://www.facebook.com/KARE11/ » Follow KARE 11 on Twitter: https://twitter.com/kare11 » Follow KARE 11 on Instagram: https://www.instagram.com/kare11/