While the police department celebrates "solving" the case with Kristján's death, several anomalies suggest the real mastermind is still at large:
: The "deep" truth of the series is that Pétur , the state prosecutor, was the one who raped the boys at Valhalla and murdered Tommi and Gummi. He had been paying off staff like Thor, Ómar, and Brynja to keep his secret. I_delitti_di_Valhalla_2020_streaming_s01e05
: The team makes a breakthrough using a fingerprint lifted from a photograph of Thor and CCTV footage from a shopping mall. This leads them to Steinþór , a former boarder at the Valhalla boys' home. While the police department celebrates "solving" the case
: Progress is jeopardized when a leak to the press puts the investigation and several lives at risk. the state prosecutor