According to the investigation, after divorcing with Leeteuk’s mother in 1998, his father lived separately from his children with his parents. Starting in the past few years, Leeteuk’s grandfather started to suffer from dementia, and to make matters worse, Leeteuk’s grandmother, who had been taking care of her husband, was diagnosed and bedridden last year with late-stage lung cancer with the additional complication of dementia. Leeteuk’s father looked diligently after his parents, but with a debt of hundreds of millions of won due to business failure and the house seized, he had decided to put his parents into a convalescent hospital. However, a day before he would admit them into the hospital, Leeteuk’s father took the lives of his parents and committed suicide.