Steve,
If William Walker had been the only one to take up the cudgels on behalf of Buchan, maybe this very 'Cold Case' would be worth re-opening - he wasn't, and without fresh information, it isn't IMO. Spinning a coin to decide whether you accept Child's (or Grudtvig's) opinion or Walkers really is not evidence, fresh or otherwise - it is opinion.
As before, if you have anything new to add to the argument, let's have it, otherwise, (to repeat) definitive statements without such are misleading.
I await Ian's book with some interest, even though he does say that he only touches on the controversy.
Jim Carroll