Listen to I Know Who Killed Your Wife online. I Know Who Killed Your Wife is an English language song and is sung by Roger Goula. I Know Who Killed Your Wife, from the album Inspector George Gently Series 8: Gently Liberated & Gently and the New Age (Music from the Original TV Series), was released in the year 2017. The duration of the song is 2:21. Download English songs online from JioSaavn.