HLN HD New York police hunt the Zodiac killer after a series of deadly attacks. 2026-10-20 When a healthy young man dies mysteriously in his sleep, toxicology tests reveal that it may have been foul play. Could a "suicide note" hold the key to solving the case? 2026-10-20 A child's memory, a diary and a forensic psychologist help investigators solve a young woman's murder. 2026-10-20 Forensic science and deductive reasoning determine what happened to a mother and daughter while they were on a shopping spree. 2026-10-20 Exploring how an American hit single from 1966 -- "The Cheater" by Bob Kuban and the In-Men -- foreshadowed the demise of the group's lead singer, Walter Scott. 2026-10-20 Eight years after a man confessed to the murder of a young woman, another man claims that he committed the crime, and investigators must use forensic evidence to determine the true killer. 2026-10-20 Although a group of teenage thugs are suspected of attacking two boys on a fishing trip, there is no solid evidence until a murky fishing hole provides some answers. 2026-10-20 When young prostitute's body turns up in an Ohio waterway, authorities have one tiny clue which could point to her killer, but face huge challenges due to her policemen clients and DNA evidence being washed away. 2026-10-20 In a small South Carolina town in 1991, 17-year-old Crystal Faye Todd, a popular high school student, is raped, murdered and dumped in a deserted field; with few leads, authorities test the DNA of several friends, and one match shocks everyone. 2026-10-20 In a groundbreaking case using animal DNA, investigators use forensic testing on a cat to help them solve the case of a woman who vanished from her home on Prince Edward Island. 2026-10-20 A look into the 1984 Oregon food poisonings, where detectives track down the outbreak to a cult which aims to use germ warfare to take down the government. 2026-10-20 A woman is found dead from a gunshot wound and police suspect her husband, however, forensic teams prove what really happened, and the truth is stranger than fiction. 2026-10-21 After American Atheists founder Madalyn Murray O'Hair disappears, the discovery of a mutilated body helps police catch the culprit. 2026-10-21 Two people witness a truck driving over an unconscious man and flee into a nearby bar, but when the police turn up, the truck, the man and the witnesses are gone. 2026-10-21 Insect evidence helps to solve the mystery of a woman found dead near a river bank. 2026-10-21 A girl who is abducted and then released soon afterward uses her knowledge of forensics to lead police to the kidnapper. 2026-10-21 A trash collector finds a severed human leg in a trash bin, but police cannot use conventional methods of victim identification; investigators turn to toxicology and DNA tests to find the murder-mutilator. 2026-10-21 A coroner finds telltale clues on the badly burned body of a murder victim, sending police in pursuit of a couple of killers. 2026-10-21 A man is arrested and convicted for a series of sexual assaults in Indiana; years later, forensic developments reveal new facts about the case. 2026-10-21 The murder of a young Seattle couple puzzles investigators until the victims' dog, Chief, leads police to the killer. 2026-10-21 A handsome young doctor's fiancée experiences severe illness after revealing that she is pregnant, and launches her own investigation to determine if the doctor is somehow responsible. 2026-10-21 A seemingly model citizen turns out to be a serial killer. 2026-10-21 An abandoned, still-running car leads investigators to a body with unusual marks and a DNA trail that lead to the killer. 2026-10-21 Police find fragments of deleted computer files leading them to suspect a woman's suicide is really murder. 2026-10-21 A suspicious neighbor gives police a break in a cold case. 2026-10-21 A family suspects their teenage daughter's new friends were involved in her disappearance. 2026-10-21 When a 62-year-old man opens a car restoration business and becomes seriously ill, his doctors cannot find the cause, but forensics can; identification of a highly toxic metal in the victim's blood leads to his poisoner. 2026-10-21 When a 6-year-old disappears, her father becomes the prime suspect; he fails a polygraph test and even confesses, but 10 years later, the investigation gets turned on its head. 2026-10-21 Investigators build a makeshift tent around a woman's body and use superglue fumes to lift the killer's palm print from the victim's skin. 2026-10-21 The disappearance of a mail-order bride proves suspicious when detectives learn that two of the Texas husband's previous wives had died in mysterious circumstances. 2026-10-21 A jeweler's search through old sales records helps police find likely suspects in the murder of elderly couple Edward Kowalzck and Gertrude Thompson. 2026-10-21 A husband was shot and killed, forensic psychiatry helped the wife to remember the details for what happened. 2026-10-21 The body of a 16-year-old girl is discovered nine months after her disappearance; forensic scientists find clues that paint a virtual portrait of her killer. 2026-10-21 The anchors share the latest stories about significant events that take place across the world and interview prominent figures. 2026-10-21 The anchors share the latest stories about significant events that take place across the world and interview prominent figures. 2026-10-21 The anchors share the latest stories about significant events that take place across the world and interview prominent figures. 2026-10-21 Investigators weigh several theories while probing the death of a retired police officer, including a botched robbery and suicide. 2026-10-21 The bodies of two young women are found in the ashes of an apartment fire. 2026-10-21 Two different men report the murder of a single mother and when the case's other anomalies stall the police, a candy wrapper and seeds help expose the killer. 2026-10-21 After a Connecticut man's body is found in a burning rental car on a Mexican highway, an insurance company suspects a scam. 2026-10-21 When a pipe bomb rips through a rural home, killing a young man and seriously injuring his mother, detectives hope that the remnants of a mailing label will lead them to a killer. 2026-10-21 A quiet residential community, shattered by the murder of a neighbor. See how modern techniques helped investigators catch the culprit in less than 12 hours. 2026-10-21 A man is found dead in his Michigan auto-salvage shop. 2026-10-21 A man is murdered in a drive-by shooting. When a mobile phone trace incriminates a killer, it's up to a forensic geologist to find evidence that he was at the scene. 2026-10-21 When a teenage girl is found dead, her boyfriend confesses to her murder. However, in a strange twist, so does another man; police must determine which is the killer. 2026-10-21 A high school gym teacher gives his friend a ride home but never returns; his wife and friend receive letters saying he started a new life, but they suspect foul play despite no body being discovered. 2026-10-21 A 16-year-old girl is killed in her own home by her mother and father. Her parents said they acted in self-defense, but the forensic evidence indicates otherwise. 2026-10-21 Investigators determine if a computer crash which almost ruined a manufacturing company was accidental or deliberate sabotage. 2026-10-21 A garbage bag leads police to a child's killer. 2026-10-21 An investigation into the disappearance of a young woman uncovers a tooth that helps police solve a crime without a body. 2026-10-21 The sensitive nose of a forensic examiner sniffs out murder. 2026-10-21 Discovering that an assault suspect is left-handed is crucial to a police investigation dating back 16 years. 2026-10-21 Forensic scientists try to find a way to "lift" the serial number from a shotgun that's their only clue in a case. 2026-10-21 Investigating the worst arson spree in U.S. history -- a rash of more than 75 fires near Seattle. 2026-10-21 Computers aid the police and FBI in solving a string of crimes. 2026-10-21 Using an anonymous letter and geographical profiling, investigators close in on a serial rapist, and a cleverly obtained DNA sample confirms their suspicions. 2026-10-21 When a young boy has serious respiratory problems and his father shows signs of early Alzheimer's disease, a chance encounter with a stranger kicks off an investigation into the cause. 2026-10-22