Nobody has heard from the Skripals for quite a while. They are most probably dead and Britain is preparing the public for news of their death.
No evidence given. This is a recurring pro-Kremlin disinformation narrative about the Skripals' alleged death.
Recently, Sir Laurie Bristow, the British ambassador to Russia, confirmed that Sergei and Yulia Skripal are both alive. He told Interfax that neither party was interested in talking to Russian officials. The ambassador emphasized that if the Skripals want to meet with representatives of Russian officials, the British side will facilitate the opportunity.
This is one of many competing and contradictory stories promulgated by Russian state-controlled media about the Skripal poisoning.