Source of Novichok poison was from bottle in one of victim's homes, UK police say

Detectives investigating the Novichok poisoning of Charlie Rowley and Dawn Sturgess in Britain, believe the source of the nerve agent was a small bottle found in Mr Rowley's house in Amesbury, Scotland Yard said.
In a statement, Scotland Yard said: "On Wednesday, 11 July, a small bottle was recovered during searches of Charlie Rowley's house in Amesbury. It was taken to the Defence, Science and Technology Laboratory at Porton Down, Wiltshire, for tests.