A religious man is accused of a double homicide.
A high school English teacher's murder brings to light a love triangle involving a faculty member and a 16-year-old girl, both of whom are suspected.
When a female rock singer is found dead with large amounts of cocaine and heroin in her system, the detectives follow the trail to her former boyfriend and a disgruntled ex-bandmate of her husband.
A vacationing couple videotape footage that might connect suspects to the robbery-homicide of a struggling actress.
The remains of a victim who was reported dead in the World Trade Center attacks are found in Hell's Kitchen. The detectives investigate the murderer who clearly took advantage of the timing of the 9/11 tragedy.
The detectives investigate a woman and her lover whom they believe hired a hitman to kill the woman's husband.
A cop-killer is acquitted, provoking the murder of a criminal lawyer.
A baseball star is accused of murdering his supplier of peformance-enhancing drugs.
The burnt body of an asian girl is discovered outside the Chinese embassy; detectives consider whether it was suicide and a political statement.
When a teen is hit by a car after leaving a coffee shop, the detectives investigate the possibility that it wasn't an accident.
When a bookie is murdered, the detectives's prime suspect is his partner.
A priest takes on a "holy" mission to kill criminals and starts with a drug dealer.
A store owner is charged for robbing his own store.
A car salesman is killed and the detectives follow leads to his last customers, a developmentally challenged boyfriend and his controlling girlfriend.
A cosmetics tycoon defends herself against charges in her boyfriend's death.
A clearcut shooting of a uniformed officer becomes muddled with the involvement of a slick attorney.
A violence prone writer, and last fare, seems to be the likely culprit in the death of a taxi driver.
A murder victim found in the East River is linked to a pro football player's party.
A murder suspect reveals, when questioned, that everything they know about the crime was revealed to them in a psychic episode.
When the a upper-crust private school's head of admissions is murdered, the detectives first suspect the parents of child who were denied access to the school, but then also find their way to the school's headmaster.
The death of a model leads the detectives to seek out a physician with questionable prescription methods.
The seemingly random attacks of a daylight sniper puts the city's residents ill-at-ease and the detectives on the hunt for an unknown killer.
The detectives are bogged down in a few murder cases that revolve around family: a wife who drove over her cheating husband and a woman with odd ties to her brothers.
The detectives investigate the death of a young child of a comedian as a possible homicide, but the investigation reveals bigger hidden truths.