Charlie seems to believe everyone is innocent.
Not at all. He thinks Darlie Routier is guilty and I don't see the evidence there, and he often cites cases where factual guilt will illuminate a similar case of factual innocence. For example he cited 2 cases where killing of family was helpful in contrasting with the Banber case.
Effectively, Charlie is an expert witness in crime analysis due to the voluminous research he has done, so a good point of reference.
In terms of this Falconio case I had been unaware of any suggestion there was an issue with the conviction, but that Lees is blameless was proved in court. Yes, treated a bit like Amanda Knox and the McCanns.