Though Ville is arrested, it soon becomes evident that Nordberg's fortune came from black-mail and that he was killed because he witnessed a murder while using his telescope on the Observatory Hill which gives a wide view to the city.
Virta and Kokki witness Vadenblick almost push her current wife off the lake-side cliff when a shot from his son's air-rifle distracts him.
When Palmu, Virta and Kokki make it clear they know he murdered Nordberg, Vadenblick tries to shoot them but misses and instead hits his own son who was listening through the door crack.
He is stopped by journalist Nopsanen who shoots him in the leg from a tree branch where he has been spying on Palmu and his crew, despite their warning not to follow up on the murder investigation.
Vadenblick's guilt is made almost immediately evident by his harsh manner, his strong views on why Finland lost in the Continuation War and the extremely demeaning tone in which he speaks to his wife.