 Hausjärvi Gravel Pit Murders

The Hausjärvi Gravel Pit Murders were a series of two or more crimes during the 1990s that were connected to gravel pits around Hausjärvi municipality in north of Helsinki urban area in Finland.According to the National Bureau of Investigation, the three different events were the doing of a one-person, who has been called the Järvenpää Serial Killer.