The leader of the Russian private military company Wagner, Yevgeny Prigozhin, claimed a US citizen died in the embattled Ukrainian city of Bakhmut, in a video posted on the Wagner Telegram group. Prigozhin is shown inspecting a body, and inspects what he claims are US identification documents. CNN cannot verify the authenticity of the documents and cannot confirm the nationality of the body shown in the video. CNN's Sam Kiley reports. #CNN #News