A heinous murder committed by an asylum seeker has caused public outrage in Sweden. The murderer is 15 years-old and his victim was a 22 year-old Swedish refugee worker, who was stabbed to death. The teenager was arrested yesterday and the police were still working to establish his identity. Investigators know his country of origin but they refused to reveal this important detail. The Prime Minister of Sweden has announced that his country will tighten security measures. In neighbouring Denmark, MPs have passed a new law curtailing the rights of asylum seekers.