Real name: Jørn Lier Horst

Jørn Lier Horst (born 27 February 1970) is a Norwegian author of crime fiction and a former Senior Investigating Officer at Vestfold police district. He made his writing debut in 2004 with "Key Witness", based on a true murder story. The detective character in his crime novels is William Wisting, and a television series based on the series was commissioned in 2016. He has also written children books, including a series named "Clue" and books about Detective agency no. 2.