Writing · b. 1968 · Tyresö, Sweden Niklas Rockström Biography Mats Niklas Rockström, born September 26, 1968, in Tyresö parish, is a Swedish screenwriter. Other Credits Wallander: Missing Screenplay 2013 Wallander: Blood Line Screenplay 2006 Svalan, katten, rosen, döden Writer 2006 Borkmann's Point Screenplay 2005 Carambole Screenplay 2005 Strong as a Lion Writer 2003 Agent-readable