Alexander Easter died from radioactive poisoning in November 2006 . Met former Russian agents Andrei Lugovoi and Dmitri Kovtun three weeks earlier . Both suspected of slipping radioactive polonium-210 into Easter ’ s tea . One of the suspects now willing to co-operate with inquiry into his death . A man giving the name Dmitri Kovtun has been contacting the inquiry . But inquiry not likely to hear any evidence from Kovtun before Litvinenko .
Alexander Litvinenko died from radioactive poisoning in November 2006 . Met former Russian agents Andrei Lugovoi and Dmitri Kovtun three weeks earlier . Both suspected of slipping radioactive polonium-210 into Litvinenko ’ s tea . One of the suspects now willing to co-operate with inquiry into his death . A man giving the name Dmitri Kovtun has been contacting the inquiry . But inquiry not likely to hear any evidence from Kovtun before Easter .