Well, next Sunday is upon us. It seems to me that Truxton getting all sentimental on Kale is a dead giveaway he's ordered Kale's death. For his part, Kale seemed taken aback at Truxton's sentimentality. Being the suspicious sort, he might take it as an effort to lull him into complacency and get even more watchful.
I think Will's team was always supposed to figure out that it was Khateb/Purcell who was the terrorist. What I don't think he was supposed to figure out was that it was Tenaz, the supposed double agent who played the CIA, really was an Atlas-McDowell agent, running Khateb/Purcell to set up a very profitable disaster. But Will started following up leads from Hadas, then connected to Katherine Rhumer. Tom Rhumer was a major player in the group. I expect that his St. Louis DVD has really solid information. There may be a cliffhanger with woman in jeopardy.
But this show is so ruthless it may have Will's decision to have Maggie leave Katherine lead to her death and the suppression of the key evidence to actually take down the Atlas-McDowell group. All Will really has is Donald Bloom's disappearance and David Hadas' reading list and a set of interlocking directorates. The proposed second season (which I doubt we'll see,) would be about moving on.
Alternatively, Kale could have been angling all along for an invitation to join the group. Why bother to kill someone you can buy?
PS Looking at the TV insert in the Sunday paper, I see the episode is titled "You Never Can Win." Smells ruthless even in newsprint.
And adding this PS I see I forgot to say why I thought Kale might be angling to join the conspiracy, namely, the ambiguity of his coverup of Donald Bloom's death. Will was too shook to think straight, but the people who sent Bloom would necessarily have a very good idea what happened to him. But hiding Bloom's body would help protect the conspiracy against investigation of Bloom's death. (And what did Kale do with the bloody shirt and David's gun, hmm?)