Nemesis

A grainy video footage shows a man holding a gun to a bank clerk's head. The woman is ordered to open the safe in 60 seconds. When the robber doesn't get his money in time, he shoots the woman. Harry Hole is assigned to the case and comes under considerable pressure when the robber strikes again. When Hole's girlfriend is also found dead and he receives threatening emails, it seems that someone has him out.
Jo Nesbø achieved international fame with his Oslo trilogy, achieving the status of bestselling author.