Skripal 'regretted being double agent' - BBC News
A former classmate says the spy told him he even wrote to Vladimir Putin asking to come back to Russia.
A former classmate says the spy told him he wrote to Vladimir Putin asking to come back to Russia.

Sergei Skripal and his daughter Yulia are in a critical condition after being poisoned by a nerve agent in Salisbury on 4 March.

Vladimir Timoshkov was speaking exclusively to the BBC.