Swedish police are investigating multiple murder cases across the country, including a double murder in Hörby involving a woman and child, and a separate incident in Luleå where human remains were found in a burned car.A man in his 50s was arrested in connection with the Hörby deaths, while a man in his 60s and a woman in her 50s were arrested in Luleå, with the man later released but remaining a suspect.Prosecutors Hans Harding and Joseph Ricken are leading these complex investigations, which include the Luleå discovery last week and ongoing detention for the Hörby suspect.