Two items from a recent tv show on Beatles themes. First, British author and documentary -maker David Whelan with what he says is new evidence on the death of John Lennon in 1980 and details that were never mad public before now. Second, the "Paul Mc Cartney is dead " conspiracy theory that has been running for more than half a century. Author Donald Jeffries has researched how it came about - and why some people still believe it...