Ukrainian star pilot killed in country's first loss of US-made F-16 jet

Ukrainian star pilot Oleksiy Mes, known as “Moonfish,” was killed when a US-made F-16 fighter jet crashed while “repelling the biggest ever aerial attack” by Russia against Ukraine. The Ukrainian Defense Forces do not believe a pilot error was behind the incident. CNN's Fred Pleitgen has more. #CNN #News Want to stay up to date on the day’s top stories? Sign up for CNN’s 5 Things newsletter, and we’ll give you the 5 biggest stories you need to know, videos people are watching, and more! Sign up here: https://www.cnn.com/newsletters/5-things?source=nl-acq_social_youtubedesc&utm_source=nl-acq_social_youtubedesc