Engla-mordet (The Engla Murder)

A young girl goes missing while biking home. There are no leads, nothing to tell where she might have gone. A passer-by happens to take a lot of pictures while driving around trying out his new camera. On one of those pictures you can see the little girl, and in one taken a couple of minutes later a car. The license plate is legible and the police find that it belongs to Anders Ekholm, a truck driver from a neighboring town. 

He turns out to be at least a two time killer, having captured and murdered the ten-year old girl as well as another woman ten years earlier. A lot of people try to tie him to other murders as well. He admits to nothing but the murder of the little girl, whom they found in the forest. He is sentenced to life in jail but there are some doubts as to what happened with the earlier murder investigation and some cops have been questioned about not doing DNA checks. However, no police officers have been found guilty of misconduct.