Law & Order: Criminal Intent S06E16 - 30

When journalist Josh Lemle learns he has Polonium-210 poisoning, he rushes to tell his old friend Detective Logan. Lemle is convinced it traces back to a story he's working on, but all leads turn up clean. A secret dinner is revealed and the detectives learn there may have been a case of mistaken poisoning. Logan pledges to help the dying Lemle get to the bottom of his murder, which is just a matter of time.