The death of a man with AIDS appears to be the work of a serial killer who may have been motivated by mercy.

The mugging of a councilman leads the detectives to arrest a mobster, who in turn leads Stone and Robinette to corrupt city officials.

The shooting of a black honors student stirs up racial tensions, especially after it becomes apparent that the cop responsible for the death may have planted a gun on the body to excuse the shooting.

Greevey and Logan's investigation into a black teenager's claim that she was raped by white policemen is hampered by a publicity hungry, black politician who will not grant the detectives access to the victim.

Police start a citywide manhunt for a man suspected of killing a cop during a rooftop pursuit.

Two brothers appear to be the logical suspects in the murder of their wealthy parents.

The discovery of a frozen corpse in a dumpster leads to rival Broadway producers.

Stone faces an old rival in court as he tries to link a hit man and three murders to a sleazy lawyer and a powerful man behind bars.

An apparent mugging ends in the death of a wealthy woman but the case comes to hang on a silver pin that may have been in the victim's possession.

The apparent abduction of a little girl by her natural mother becomes complicated by charges of sexual molestation.

The investigation into the murder of a young physician leads to the discovery of an unorthodox and illegal relationship between her fiance and his psychiatrist.

The absence of a murder weapon complicates the investigation into the murder of a drug addict who stole from her family to support her habit.

Stone battles the Brooklyn DA's office over prosecutorial jurisdiction in the case of a mentally handicapped man who confesses to the stabbing deaths of two women.

The initial investigation into the death of a research scientist leads to an animal-rights group until evidence surfaces that her husband's affair with a coworker may point to a possible motive for the murder.

While investigating several deaths at a diabetes clinic, Briscoe and Logan discover that teenage computer hackers may have tampered with the clinic's medical database.

When a Romanian immigrant kills, his lawyer announces he will plead his client "not guilty due to cultural insanity" claiming the man had been conditioned to violence in his homeland.

Logan and Briscoe begin their investigation into the death of a hearing-impaired young woman by questioning her two most recent boyfriends.

The police suspect a cover up when they receive an anonymous tip that a wealthy man was murdered by his wife, who refuses to allow an autopsy after a physician declares that the death occurred from natural causes.

Stone and Kincaid try to prove that the young woman believed to have planted a bomb in a parking garage had been brainwashed and was acting under the direct orders of a charismatic cult leader.

A skeleton unearthed at a building site resurrects one of Stone's old cases, and brings him face to face with the tenacious, brilliant culprit, who is seeking a new trial.

A millionaire friend of Schiff's won't cooperate with the police following his son's kidnapping.

While investigating a woman's claim that she passed out in a taxi and awoke to find her newborn missing, Briscoe and Logan uncover a scam involving private adoptions.

A 14-year-old's shooting death involves the son of a former police detective, who's also an old friend of Briscoe's.

During a 24-hour period, Briscoe and Logan have a heavy caseload that includes 5 unrelated murders and a domestic quarrel, which results in the maiming of the husband.

A black minister fans the flames of racial intolerance after a hit-and-run in Harlem claims the life of a 12-year-old and the Jewish driver isn't indicted.

Briscoe and Logan investigate the disappearance of a child from her abusive foster home and find her being held by a loving but disturbed woman who insists she has acted only for the child's own good.

An assailant breaks the wrist of a tennis player prior to a tournament, and a competitor is among the suspects.

A truck hits a pedestrian and the investigation reveals the victim's link to a baby-food company in which a new partner has connections to the Russian mob.

A comedy-club owner comes under suspicion for having shot his wife, now comatose with a bullet in her head, after it's discovered he was abusive and she was about to divorce him.

The killing of a Japanese nightclub owner who was visiting New York leads to the arrest of a singer who once worked for the deceased, and whose lawyer uses the ""battered-woman syndrome"" as a defense.

The killing of a man who had served as a juror in a mob trial leads to a battle of wills between McCoy and his long-time friend, the suspect's attorney.

The death of an autistic youth in custody reveals a multitude of unusual and possibly illegal therapies being used, but also parents reluctant to pursue a prosecution.

When the detectives solve a series of murders committed by a holdup team in ski masks, McCoy must determine whether a young woman found with them is an unwilling hostage, or an active participant in the crimes.

A mother claiming that her baby was kidnapped while she was at confession retraces her steps and actions with Curtis, which raises legal questions later when her attorney introduces a unique defense.

A jogger killed in Central Park turns out to be the second wife of a former comedy club owner, who was acquitted of killing his first wife. And convicting him this time may hinge on tracing the path of a Columbian coin used as a subway token slug.

A woman is shot while sleeping, and the investigation leads the police to a boy whose crack-addicted mother has entrusted him to a dealer's care.

After Briscoe, Curtis, McCoy, and Kincaid witness the execution of a criminal they brought to justice, their unique reactions to the event culminate in personal tragedies for each of them.

The detectives face a difficult struggle getting witnesses to a girl's apparent suicide to come forward while Ross tries to prove that a known bully is the one really responsible for her actions.

A headless corpse fished out of the river sends Briscoe and Curtis out to Los Angeles to obtain a blood sample from their chief suspect while McCoy and Ross back in New York try to obtain a court order for the procedure.

McCoy becomes obsessed with nailing a serial rapist recently released on parole and pushes the cops perilously close to harassment as he attempts to connect the man with a new rape and murder matching his previous M.O.

The cops' best hope of finding a kidnapped hired car driver alive is one of the armed robbers who grabbed him after a job, but the immunity deal he demands in return would effectively preclude his prosecution for the shooting death of an off-duty cop, placing McCoy in a difficult position as he seeks to placate the cops, who want the guy prosecuted, and the kidnapped man's wife, who wants every avenue of saving her husband explored.

The cops break the seemingly random murder of a pizza delivery guy with a little ""undercover"" work in the park, but McCoy and Ross face a harder battle to get a conviction when the two defendants resolutely point the finger at each other, and the one item identifying the actual killer is the recording of a confession-made to a priest.

After the cops trace an eagle tattoo on a man shot and killed while holding up an armored truck to a group of militia members, McCoy finds himself facing one of their number as the pro se counsel for his friends, arguing for the concept of "jury nullification", the right of a jury to protect a defendant from an unjust law by finding him not guilty despite the evidence.

It's old home week for Briscoe when an apparent murder of a teenage model in New York develops ties to Baltimore and Detectives Munch and Falsone pay a visit to the Big Apple to observe the case. Meanwhile, McCoy finds himself battling the attorney of the victim's parents for access to his clients and the Baltimore DA for jurisdiction.

This crossover continues on Homicide: Life on the Street S06E05 Baby, It's You (II).

The murder of a bail bondsman looks fairly routine until the chance words of the chief suspect uncovers possible case-fixing between a shady lawyer and an unknown contact within the judicial system.

The investigation into the death of a man who initially appears to be the victim of a mugging victim reveals him to be a Middle Eastern physician who performs genital mutilations on young girls.

After Briscoe and Curtis finally determine who was driving the car that killed three people, the legal prosecution stands in danger of becoming a kangaroo court when McCoy's feelings over Kincaid mesh with the political agenda of an ambitious judge anxious to make an example of the defendant.

The stabbing death of a psychologist draws Detectives Briscoe and Curtis into a heated divorce case and pits McCoy and Ross against a manipulative attorney.

The death of a college student leads to a case involving an HIV-positive male who's seeking to infect as many young women as possible. McCoy, testing right-to-privacy ethics, wants to charge him with murder.

When a woman is found unconscious at the bottom of her apartment stairs, Briscoe and Curtis must figure out what happened -- before it's too late. In order to make his case, McCoy pits the two detectives against each other in the courtroom.

After a 12-year-old quadriplegic dies at home in his bed, paramedics claim that he was suffocated and the suspects include the boy's parents and sister.

During the search for a pedophile who raped a 10-year-old, a snitch offers Briscoe a chance to avenge his daughter's death. Meanwhile, Van Buren learns that her job is in jeopardy; McCoy is ordered to appear before a disciplinary committee because of his conduct in a DUI case; and the increasingly political Schiff worries that the rape case may adversely impact his reelection bid.

Detectives discover a shocking twist involving unlikely suspects when they investigate the brutal beating of a black man dumped near the highway.

The investigation into how a teen got wounded leads to a case involving a young woman's murder and a drug operation.