Sol Kyung-gu. Actor: Memoir of a Murderer. Sol Kyung-gu was born on 1 May 1968 in South Korea. He is an actor, known for Memoir of a Murderer (2017), Peppermint Candy (1999) and Public Enemy - Ein harter Cop (2002). He has been married to Song Yun-ah since 2009. They have one child.