South Korean YouTuber Na Dong-hyun has died at age 46 after stating that he was having trouble sleeping. Dong-hyun was found dead at his home in eastern Seoul on Saturday, September 6, according to multiple local outlets. The Korea Herald reported that a friend claimed Dong-hyun hadn't shown up for a meeting and was not reachable. Authorities were dispatched to Dong-hyun's home in the Gwangjin District around 8:40 a.m. local time, where he was found dead. There was reportedly no suicide note or signs of violence at the scene.