James DeSanto

James DeSanto, otherwise known as "The Empire State Killer", is a character in Law and Order: Investigation, Season 1, and serves as the primary antagonist of the final story arc.

Season 1
He is a former police officer with a condition that causes him to have one blue eye and one green eye. He originally served a year in prison before being paroled for ratting out his cellmate for an unknown crime.

Several years ago, DeSanto murdered Your Character's brother, which inspired them to become a police officer. The case remained unsolved until several more murders with the same MO had occurred throughout the city. His MO consisted of breaking into an off campus apartment, making the victim's bed out of impulse, and killing them with a single gunshot to the back of the head. In Episode 14, he nearly shoots your character before Detective Val Rojas pushes you out of the way and takes the bullet.

Depending on your testimony in Episode 15, he is tried for shooting Detective Rojas and killing Bobby Hahn.

Season 2
In Episode 12, he requests to meet with you regarding a cold case. In the 1990's, an undercover cop named Donovan Baker was killed by Marcus Greenly, a man who DeSanto describes as a "nihilistic gangster". It is revealed that the reason DeSanto was exonerated for his unknown crime was because he delivered the testimony that got Greenly convicted for the murder despite a body never being found due to the two of them being cellmates. With DeSanto's arrest, there was the possibility that Greenly's conviction would be overturned and he would be a free man. DeSanto offered information as to where Baker's body was, but would only give the information to your character.

During the meeting, DeSanto offered a deal. He was going to be sent to a prison in New Hampshire, where he was facing the death penalty for a murder he had committed there. He offered to confess to your brother's murder and give you closure if you prevented him from being sent to New Hampshire. The clues he gives to the location of Baker's body are that Greenly gave him a "Judas sendoff" and an address.