Jack manages to kidnap Logan this week, as he uses some sort of armor and automatic weapon to shoot his way past secret service agents. He then drags Logan away and berates him with death threats until Logan tells Jack everything he knows.
He says the Russian delegate was behind Hassan's murder. Off Jack goes, as we see him kill more Russian dudes and then start a blood bath in the delegate's office. Near the end of the episode, Logan gets the Russian President on the line and we learn that he was actually behind Hassan's murder. He's also in the country now for the peace treaty signing.
But Jack has bugged Logan and hears the whole conversation. Even though he's bleeding from a knife wound, the hour concludes with him slinking away for the next part of his non-urgent mission.
Meanwhile, the President defies the First Amendment and orders the FBI to arrest Meredith Reed to prevent the evidence by going public.
Also, Chloe determines the identity of Jim Ricker and frees Cole to track him down. She figures this is the best way to locate Jack and save his life from CTU, who - now controlled by Pillar - wants Jack dead.
Heck, so do we. The guy is nothing but a cold-blooded, vengeful murderer at this point.