Around 100 counter-terrorism officers are helping in the investigation Britain and its allies accused Russia of trying to kill the Skripals LONDON: British police rushed to solve a murder mystery on Monday after a woman died following exposure to the nerve agent Novichok, four months after the same toxin nearly killed a former Russian spy in an attack that Britain blamed on Moscow. Prime Minister Theresa May said she was “appalled and shocked” by the death of Dawn Sturgess, a 44-year-old mother of three who had been living in a homeless hostel in Salisbury in southwest England. Sturgess and Charlie Rowley, 45, fell ill last weekend in the town of Amesbury, near Salisbury, the city where former double agent Sergei Skripal and his daughter Yulia were attacked with Novichok in March. They have since recovered.