what is it about us aussies?
i think FW is weird too, and i think, based on the limited amount i've read, that he tried to avoid co-operation by seeming to "hyper-cooperate", writing his letter, etc etc.
as a personal example of this "guilty cooperation" mindset, i am terribly embarrassed to admit that when i was younger i shoplifted a Sony Discman from a music store. When discovered i went completely overboard, seeming to be in complete cooperation with the store manager, to the point where the whole thing was just forgotten by the store as a misunderstanding. However i was guilty. My hyper-cooperation, my SEEMING cooperation, hid my real knowledge. By talking and talking, i really ended up saying nothing, and kept my secret hidden.
That's what i suspect about FW sometimes. As has been said by others, if he knows something IMPORTANT, then SAY IT. By talking and talking, he's been able to avoid fessing up.
For instance if he knows that Burke did it, SAY IT. If he knows that Patsy did it, SAY IT. If he thinks the Rams are innocent, SAY IT. He talks, he "co-operates", but he never SAYS IT.
And of course the big one... he "didn't see" jbr's corpse in the wine cellar when he looked the first time.
Now Fleet might be totally uninvolved, but i think this goes to show that EITHER fleet OR john had some knowledge of what had happened.