Detective Lionel P. Fusco is a homicide detective in the New York City Police Department (NYPD). John Reese has turned him into his own source of information and support within the police department. He has a son, Lee, who he is close to. Fusco is originally part of the NYPD 51st precinct, and good friends with Detectives James Stills and Louis Azarello. In 2004, Fusco's wife files for divorce and demands full custody of their son, kicking Fusco out of their house. Stills meets with Fusco at a bar and offers to let him stay at his house, to which Fusco accepts.Stills and Azarello begin to manipulate and persuade Fusco to join them in their criminal activities. Fusco is reluctant to help them, but still teaches Azarello how to cover up their killing of a drug dealer who was uncooperative in a deal gone bad. Fusco is later horrified to see Stills and Azarello's killing of several people in a second drug rip off. Fusco shoots another dealer in self defense, and Stills gives him some of their drug money, welcoming him to their crew. ( In Extremis )Fusco, however, is not opposed to getting his hands dirty when his fellow officers are hurt. Fusco confesses to a shooting while being questioned by a department shrink, and tells the story of how when a 24-year old rookie cop was gunned down by a drug dealer named Jewel, Fusco exacted revenge by walking up to Jewel and smiling as shot him twice in the chest, later making it appear justified. Fusco claims that Jewel got what's called the Devil's share , or a cruel form of karma in his eyes. ( The Devil's Share )Fusco first comes into contact with John Reese in 2011. Fusco, Stills, and Azarello become part of a gang led by ADA Diane Hansen, which Reese was attempting to take down. Fusco drives Reese to Oyster Bay to kill him, but Reese escapes from the car and takes Fusco's sidearm. With it, Reese kills Stills in an armed standoff and hides his body in the trunk of Fusco's car to link him to the crime and blackmail him into working for him. Reese orders Fusco to dispose of Stills' body, and Fusco becomes Reese's source of information inside the NYPD.After Fusco attempts to have Reese killed a second time in some dealings with the Mexican drug cartel, Reese blackmails a corrupt police captain in order to get Fusco transferred to the Homicide Task Force at the 8th Precinct and partnered with Detective Joss Carter, who is hunting Reese at the time. Fusco is then ordered to keep Carter's investigations directed away from Reese and to keep Reese informed of what Carter is doing. ( Cura Te Ipsum )While providing Reese with more information involving another case, Fusco meets Harold Finch, who is initially uncomfortable about Reese's decision to work with Fusco, but eventually gains his trust. ( Witness )As time goes on, Fusco does demonstrate a loyalty to Reese. Their relationship is comical, their conversations are filled with dry humor and witty annoyance. Carter also begins working with Reese and Finch ( Legacy ), but she and Fusco do not know that they are working for the same people for a long time.Fusco helps Reese and Finch on another case, where he meets up with his friend, corrupt police officer Patrick Simmons, for information on a smuggler involved with the crime organization HR. When Fusco is later caught and taken out to be executed by Ian Davidson, a corrupt IAB detective, while running an errand for Finch, Reese shows up just in time to kill Davidson and save Fusco's life. Reese, however, forces Fusco to go undercover in HR to keep him informed of their activities and cover up Davidson's death. Fusco goes to Simmons to help cover up the killing, but Simmons warns Fusco that he belongs to HR. ( Blue Code )Fusco later comes to Reese's rescue, saving his life by killing a high-ranking member of HR. ( Matsya Nyaya ) He also rescues a drugged Finch before he could be injured. ( Identity Crisis )Finch is uneasy keeping Fusco and Carter in the dark about each other and their connections in working for Finch and Reese. Carter's suspicions about Fusco come to a head during a standoff between Reese and the FBI, where she barges into the men's bathroom, confronting Fusco and holding him at gunpoint, accusing him of being a member of HR. Fusco is forced to confess to her that he is working for the Man in the Suit , AKA Reese. Both detectives are shocked to learn that they are both working for the same person. Working together, they are able to rescue Reese during a shootout with HR. ( Firewall )Simmons finds out about Fusco's involvement with the Man in the Suit , and forces him into doing one more favor for HR under the threat that Simmons will kill Fusco's son if Fusco does not comply. Simmons tells Fusco that his boss is currently pulling the strings of HR, and that they are close to being defeated. While aiding Reese in protecting another person of interest, Fusco locates a ledger containing the names of the members of HR. Fusco tears out the pages containing the names of him and Simmons. ( Bury the Lede )Fusco is later forced back into HR by Simmons, as Simmons blackmails him with his cover-up of the murder of Detective Davidson. ( C.O.D. )Fusco becomes suspicious of Detective Cal Beecher and his relationship with Carter, and begins trailing him. He is discovered by Simmons, who firmly tells Fusco to go home. Fusco learns that Beecher is somehow connected to HR, but is yet to determine the connection during the time. ( Shadow Box )Fusco later solely aids Finch while Reese is being held in custody by the FBI. Fusco and Finch work together to save the life of a brilliant young boy who is also a drug dealer. ( 2R )While the rest of the team is busy dealing with Reese's capture by FBI agent Nicholas Donnelly, Fusco is forced to singlehandedly protect supermodel Karolina Kurkova from Armenian gangsters. ( Prisoner's Dilemma )After Fusco and Carter learn that Beecher was the one who informed the IAB about Detective Bill Szymanski's possession of dirty money, which framed Szymanski and eventually got him killed ( All In ), Fusco confronts Beecher in the bathroom, warning him to stay away from Carter. The conversation becomes increasingly heated until Raymond Terney breaks them up.Fusco then records a conversation between Beecher and Carl Elias in jail, and Elias tells Beecher that Szymanski was clean and Beecher got played by HR. Beecher is eventually killed by HR after they realize he knows too much. ( Trojan Horse )Fusco's past life catches up to him when the IAB begin to investigate his involvement with Stills. Azarello had been instructed by HR to tell the IAB that Fusco had killed Stills (not knowing that Reese had staged Stills' murder exactly that way), triggering the investigation. Fusco refuses to cooperate with the IAB, but Carter, who has been recording the interrogations, confronts Fusco in the bathroom. Fusco tells Carter that he didn't kill Stills, but confesses that he was a dirty cop. Carter refuses to continue listening when Fusco tries to point out that things have changed, and she is devastated at what she hears.The IAB eventually track down the location of Stills' body to Oyster Bay, and force Fusco to tell them exactly where it is at the place. They take Fusco with them and dig up the spot, but discover that the body is missing. Fusco takes his gun and badge back and returns to the precinct. It is later revealed that Carter used Bear to dig up Stills' body earlier to save Fusco from being arrested. ( In Extremis )Later, Fusco aids Samantha Shaw in taking out some gangsters who were after a POI that Shaw is dealing with. After Carter is demoted to patrol officer, Fusco also gets a clumsy new partner about whom he expresses his dislike to Carter. The two detectives have reconciled since Fusco's investigation by the IAB ( In Extremis ), and still occasionally help each other. ( Liberty )Upon Carter's request, Fusco attempts to access Beecher's NYPD file. He and Carter are both shocked and confused to discover that the file is restricted, and Fusco figures that someone has tampered with it as there are many HR moles still remaining in the NYPD. ( Nothing to Hide )Fusco also plays smaller roles in helping Reese and Finch on other cases, including assistance in watching Carter while she is presumably being stalked by a POI ( Lady Killer ), reviewing information on a lawyer and POI while watching her interrogation about a crime she was framed for ( Reasonable Doubt ), as well as giving Reese information he was able to find on the whereabouts of Root and a kidnapped Shaw. ( Mors Praematura )Fusco gives Reese some information on the Russians and their involvement in HR during an investigation of an intercepted drug delivery. He also later talks with Carter and insists that she could use some help in bringing down HR. Carter falsely accepts, and ditches Fusco while he goes to get his weapons from his apartment. ( Endgame )Fusco later assists Reese in watching HR's patrol of a federal department, since HR wants Reese dead. When Simmons sees bloodstains on an ambulance that Reese is hiding in, he sends his men after the ambulance, and Reese forcefully drives it away. Fusco shoots down two HR cops, but is discovered and knocked out by Simmons.Simmons, Officer Lin, and Detective William Petersen keep Fusco in a fortune cookie factory and brutally interrogate him on the location of files Carter had of HR members. Simmons breaks Fusco's fingers, and later threatens to kill his son Lee if Fusco does not cooperate. Fusco finally gives in and tells them a location, which Simmons checks out. When Simmons finds out that Fusco lied, he sends Lin to go kill Lee and tells Petersen to kill Fusco. When Fusco profusely begs Petersen to have HR spare Lee, Petersen allows Fusco to call Lee to say his last goodbyes. Fusco promises Lee that everything will be all right, then hears a gunshot and begins to cry, but Shaw is the one that comes in on the other end, saying that Lee is safe. However, she says that she doesn't have enough time to save Fusco, and tells him she figured that he would've wanted her to save Lee.Petersen then aims his gun at Fusco's head, but Fusco, who has been working at his handcuffs, frees himself and brutally strangles Petersen to death.Later, Fusco is very grateful to Shaw for saving Lee. In his car, he watches Lee happily go to play hockey with some men (one of them presumably being Lee's coach and/or Fusco's friend(s)). ( The Crossing ) Show less «