In 2002, Park co-starred in Winter Sonata with Bae Yong-joon and Choi Ji-woo, which brought him fame in Japan.

He and co-star Song Yun-ah visited Japan to promote the series in a showcase attend by 800 VIP guests at Toho Cinema in Roppongi Hills, Tokyo.

Park was found dead by his mother at 5:30 am June 30, 2010 at his home in Nonhyeon-dong, Seoul, hanging from a camcorder charger cable after an apparent suicide.

[2] Prior to his suicide, he was apparently suffering from the pressures of managing his entertainment company and his career, whilst also coping with his father having cancer.

[3] JYJ's 2011 album In Heaven included a song which was dedicated to Park by his good friend, member Kim Jae-joong.