Insomnia

At a dock, Engstrom and Jon Holt confront each other and Holt says that Tanja's death was an accident. Holt runs away from Engstrom, he slips, hits his head and falls into the water. Engstrom goes to the house near the dock (the house seen in that photo where Jon Holt has a fish in hand) and finds Tanja's dress, evidence that Holt did kill Tanja and that the two of them would hang out in that house. Hilde tells Engstrom that she knows that he shot Vik.

Trowa