They may have approached Sergei

the Novichok nerve agent used in the attack. He laughed off as “silly” the idea that they would have carried a women’s perfume bottle. They may have approached Sergei Skripal’s house by chance, but did not know where it was located, they said.

The reason their first visit to Salisbury was so brief was because they had been forced to cut it short due to snow. They then decided to return the next day.

The two men surfaced a day after

when your neurons fire messages. Changes in calcium ions make your heart beat or your muscles contract so you can get up and leave when something threatens you.