The Killer's Art by Mari Jungstedt

The residents of Visby on the Swedish isle of Gotland are shocked when local art gallery owner Egon Wallin is found murdered, hung from one of the town's gates. Egon was well-known in Visby and liked by everyone. But after his death, DS Anders Knutas, who's in charge of the case, discovers that Egon was planning to leave his wife, sell the gallery he had owned for twenty-five years and move to Stockholm. The police also find valuable stolen paintings in Egon's house. Journalist Johan Berg is happy to be sent back to Visby to cover the story, since he would like to move there permanently so he can be with his girlfriend, Emma, and their baby daughter Elin. After a slow start to the investigation, Knutas and his team discover a connection between Egon and some criminal acts in Stockholm. The Killer's Art is the fourth book in the Knutas/Berg series and is similar to the police procedurals of Peter Robinson. It hasn't been published in the U.S., (although the first three have) which is a pity because it's one of my favorite Swedish series.