The 2nd Amos Decker book picked up where it left off from Memory Man. Amos was invited to join a small team in FBI as a consultant.
He was nervous. And while driving to his new location, he heard over the radio that Melvin Mars, a footballer in death row and was stop from being executed when someone else confessed to the crime.
Amos has met this when he was still in the game. And the coincidence that someone confessed also get him interested.
He convinced the team that this is the next cold case to work on.