I would suspect that there is some portion of the story that will fall apart among the players and that is what the Crown wants to expose (assuming they know at what point the story collapses).
Of note is todays column in the Globe (
https://www.theglobeandmail.com/cana...ments-told-to/) — may be paywalled.
The interviews with HC are revealing, but have been ruled as inadmissible by a different judge as being “coerced”. Interesting, because the tale there is quite different.