Lee Rheehyun, the lead singer of South Korean 5-member music group "M STREET". At 4:30 PM on December 1st, studio workers at a recording studio in Yangjae-dong, Seoul found Lee Rheehyun hanged in the practice room. The police said that "a suicide note was found beside the body with contents mainly expressing apology to his parents, brothers and people around him, so we temporarily judge this as a case of suicide, but detailed investigations are still ongoing." Additionally, according to the latest reports from South Korean media, Lee Rheehyun's motive for suicide is likely related to stock market investment failures.