⊙Shortly after wrapping up their third album activities, member Hwan Sung was hospitalized for a high fever and abdominal pains. Doctors were initially unsure of what was causing his illness and over a span of 6 days his health rapidly deteriorated. Hwan Sung was diagnosed with malignant viral pneumonia, eventually lapsing into a coma and placed on life support when doctors pronounced him brain dead. As he lay in the Intensive Care Unit, his band mates sat in disbelief and prayed for a healthy recovery, but after much anguish, Hwan Sung's parents decided to remove him from life support.
-From Wikipedia