A former Russian frogman has claimed that he killed a famed British diver, who vanished while spying on a Soviet warship more than 50 years ago.
Commander Lionel "Buster" Crabb disappeared after the vessel, which had brought Soviet leaders to Britain, docked in Portsmouth harbour in 1956.
Retired sailor Eduard Koltsov told a Russian documentary crew that he cut the Englishman's throat after catching him placing a mine. (more)
