@CNN: One of two people critically ill in a UK hospital after a “suspected exposure to an unknown substance” is a former Russian military official convicted of being a British spy, a source familiar with the investigation told CNN https://t.co/6dZewjOXZk

@CNN: One of two people critically ill in a UK hospital after a “suspected exposure to an unknown substance” is a former Russian military official convicted of being a British spy, a source familiar with the investigation told CNN https://t.co/6dZewjOXZk