Missing sub crew believed to be dead, tour company says CNN 0 164 2023.06.23 04:10 https://www.youtube.com/watch?v=IKiiziWA-FI + 18 https://www.youtube.com/feeds/videos.xml?channel_id=UCupvZG-5ko_eiXAup… + 15 Missing sub crew believed to be dead, tour company says