HLN HD A fire investigator determines if a kerosene heater is the cause of a fire that killed one person or if it was murder. 2026-07-18 California police in 1957 search for a murderer, but the case goes cold; 50 years after a crime is committed, advances in computer technology determine the killer. 2026-07-18 Investigators piece together tiny clues at the scene of a hit-and-run accident; their findings help to track down the offending driver. 2026-07-18 A couple's murder leads investigators into the world of white supremacists and a string of hate crimes. 2026-07-18 A rare gun and a victim's beloved dog help investigators trying to solve a multi-year-long murder case where most of the witnesses were admitted drug users. 2026-07-18 A search in Virginia's DNA databank reveals the identity of a news producer's murderer. 2026-07-18 A homicide detective claims his wife accidentally shot herself in the head, but the evidence indicates otherwise. 2026-07-18 Officials probe the death of a woman investigating the possible side effects of the drug she was prescribed for bipolar disorder. 2026-07-18 A chip of stainless steel brings a killer to justice 20 years after a woman's body is found in a ravine. 2026-07-18 An 11-year-old girl is sexually assaulted and shot twice at close range. 2026-07-18 A woman is killed weeks before testifying against the man who sexually assaulted her. 2026-07-18 New York police hunt the Zodiac killer after a series of deadly attacks. 2026-07-19 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? 2026-07-19 A child's memory, a diary and a forensic psychologist help investigators solve a young woman's murder. 2026-07-19 Investigators weigh several theories while probing the death of a retired police officer, including a botched robbery and suicide. 2026-07-19 The bodies of two young women are found in the ashes of an apartment fire. 2026-07-19 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. 2026-07-19 After a Connecticut man's body is found in a burning rental car on a Mexican highway, an insurance company suspects a scam. 2026-07-19 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. 2026-07-19 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. 2026-07-19 A man is found dead in his Michigan auto-salvage shop. 2026-07-19 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. 2026-07-19 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. 2026-07-19 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. 2026-07-19 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. 2026-07-19 Investigators determine if a computer crash which almost ruined a manufacturing company was accidental or deliberate sabotage. 2026-07-19 Car with three Secret Service agents collides with local deputy's car; investigation launched into who was responsible for the deadly car accident finds two very different conclusions. 2026-07-19 The derailment of the Sunset Limited was the deadliest train crash in U.S. history killing 47 passengers and crew with several more injured. 2026-07-19 Arson investigators attempt to determine the cause of the 1987 fire at the Kings Cross Underground Station in London. 2026-07-19 A discarded sleeping bag, containing bloody sneakers and a purse, leads police to the body of a young woman; a mark found on the victim's body enables police to track the killer. 2026-07-19 A woman's apparent accidental death begins to look fishy after police uncover a letter written by the victim days before her untimely death. 2026-07-19 Stories from across the world and refreshing conversations with Audie Cornish. 2026-07-19 Stories from across the world and refreshing conversations with Audie Cornish. 2026-07-19 Melanie Zanona; Catherine Lucey; Isaac Arnsdorf. 2026-07-19 Investigators determine what caused a house fire that killed an elderly couple and whether the victims' son is responsible. 2026-07-19 Detectives are suspicious after a woman is killed in a hunting accident, but it takes more than twenty years before a trace evidence analyst is able to match fibers on a soiled blanket to the killer. 2026-07-19 When hunters find a skull in a Texas canyon, police find bits of clothing, a woman's shoe, some small bones and a strand of hair; once they discover her identity, it was time to find the killer. 2026-07-19 A wife is missing in Key West; investigators wonder if they should be searching for a missing person or a killer. 2026-07-19 Suicide notes and a pistol in hand lead police to suspect that a mother of two young children appeared to have killed herself, but when investigators learned of a house fire she was in three years earlier, they reinvestigated. 2026-07-19 The violent death of an Air Force officer's wife outside a Philippines air base is examined, amid accusations of a love triangle involving the murdered woman's husband; investigators use groundbreaking computer forensics to make their case. 2026-07-19 Pieces of plastic the size of sand hold clues to a bombing. 2026-07-19 At first glance it appears a young woman suffocated, but further investigation shows the scene was staged. 2026-07-19 A killer is careless when a home is destroyed by fire and a young boy is missing. 2026-07-19 A patrol officer is shocked by the amount of blood at a traffic accident and is shocked by the coroner's ruling until an anonymous phone call re-ignites the case. 2026-07-19 An irrigation canal murder remains unsolved until a similar murder occurs. 2026-07-19 The light of day and DNA picture painted by molecular biologist reveals new clues about a nighttime traffic accident. 2026-07-19 On Valentine's Day, an obstetrician finds his wife dead and calls 911; police discover inconsistencies between the blood spatter evidence and his version of events. 2026-07-19 Weed analysis and photogrammetry are used to help solve the 1995 murder of a California teenager is found dead after disappearing from her home. 2026-07-19 An Alaskan trooper finds a woman's body beside a frozen road, but evidence is scant even after a suspected murder weapon is found. 2026-07-19 Police link a clump of hair discovered in an isolated area with a woman who disappeared 20 years ago. 2026-07-19 A news anchor is shot to death outside her home in an apparent crime of passion by a fan; a police dog tracks the scent of the killer back to the crime scene. 2026-07-19 A fire, caused by an unattended cigarette, kills the estranged wife of a police officer; forensic scientists discover that the cause is far more complicated. 2026-07-19 A trio of men, responsible for several bank robberies, leaves no evidence behind; forensic scientists help catch them by looking at the criminals' posture and clothing. 2026-07-19 When a woman's bone marrow test reveals arsenic poisoning, investigators try to determine if it is due to groundwater contamination or something more sinister. 2026-07-19 A missing bank president's body is found floating in a lake; the duct tape used in binding him to a chair helps solve the crime. 2026-07-19 A husband was shot and killed, forensic psychiatry helped the wife to remember the details for what happened. 2026-07-19 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. 2026-07-20