Dawn Sturgess, 44, died in hospital Sunday night from poisoning by Novichok nerve gas on June 30. The Met police have launched a murder inquiry led by 100 detectives from the Counter-Terrorism Policing Squad. Charlie Rowley, 45, who collapsed with her, remains in critical condition. They were found unconscious at a Wiltshire home a few kilometers from Salisbury, where the former Russians spy Sergei Skripal and his daughter were attacked by the same poison, for which the British government blamed Russia. Shortly before Sturgess’ death, the British Home Secretary reported progress in the investigation, although the police are still without leads in either of the inquiries.