A passenger onboard a Singapore Airlines flight that was hit by extreme turbulence spoke on Wednesday (May 22) about the experience, including the moment he helped medics with a man who died from a suspected heart attack during the ordeal.<br /><br />WATCH MORE: https://thestartv.com/c/news<br />SUBSCRIBE: https://cutt.ly/TheStar<br />LIKE: https://fb.com/TheStarOnline