Goren leapt out of the taxi before it had even driven up to the curb, landing hard and running fast towards the dark house where Eames was. He had done some of his own researching after he had obliterated the television back at One Police Plaza. He and Tyler had researched off the record.
According to Littman's father, the doctor-to-be had been receiving threatening messages for months before his death. Goren found those messages and read them all carefully, realizing that a character named Mike was blackmailing him. Littman had an incident on his record, and it could jeopardize his chances of becoming a certified doctor. He had knowingly helped a person commit suicide, euthanasia, and had covered it up. The bargain was that Littman was to bring Eames to Mike's place or that bit of damaging evidence would be brought to light. The letter even gave the address of where to take her, a boathouse along the Hudson and near where his body was found. The handwriting on these letters matched the writings on the notes Goren had been receiving.
Littman had been killed by a nine-millimeter handgun, it being found near where Littman's body was discovered. There were no prints, but ballistics confirmed it was the gun that killed the doctor. The serial number had been obliterated professionally, but after many painstaking hours the number had been recovered and sent through the system. It belonged to Joseph Livingston, along with a Beretta. Goren had recalled that the FBI agent carried his Beretta at his side. Livingston's Beretta was an older model, but it could get the job done.
Upon closer examination of Goren's cell phone records, Tyler had managed to find out who owned the phones making the text messages and calls to Goren's phone. It was a man named Michael Naderson, and all the phones had been purchased on the day they were used and discarded. Goren recalled that Livingston's middle initial was an M, but without confirmation he did not know if it was linked or not. Another CSU had ties with the FBI and managed to have Livingston's record faxed to the lab. The agent's middle name was Michael and listed as one of his aliases was Michael Naderson.
Goren had realized that every time he received a call or message Livingston was never present, only increasing his suspicions that Livingston was the head of Eames' abduction. He had remembered that Livingston licked his thumbs as he turned pages, as he had done while looking through a file. He had also used Eames' phone, and he and Tyler returned to the Major Case squad room to dust the phone and collect the files from her desk. After much sifting they found a wet stain of saliva on one of the papers, and they ran that against the DNA from Eames' hair. It was a match. One good print from the phone matched the unknown prints on the original message as well as the last letter Littman received from Mike. It was definitely Livingston.
Archie had cleaned up the videos and was able to pinpoint Eames' location using the images from the windows. From what had been gathered over many over-time hours she was indeed in Hell's Kitchen, more specifically the Bronx. This had been verified by the fact that St. Peter's Episcopal Church was visible from one window and Hutchinson River Parkway visible from the other. Archie had narrowed it down to the street but that was as close as he could get to her location. That was all Goren needed, his gut would tell him when he got there, and it did.
Goren did not know why Livingston was doing it, but he did not care any longer. He had taken his partner and hurt her, and that was all that was important.