HLN HD 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. 2026-04-19 Police in St. Petersburg, Fla., use cell phone mapping, wiretapping and a host of forensic evidence to find a surgeon's killer. 2026-04-19 A woman wins her release after being imprisoned for allegedly killing her mother in a car fire. 2026-04-19 Authorities are able to apprehend a kidnapper because he allowed his victim to write a will on a telltale pad of paper. 2026-04-19 Experts debate whether an apparent heart attack victim died from natural causes or alleged poisoning by his girlfriend. 2026-04-19 When a 12-year-old was found dead in her home, police were left clueless until a string of burglaries months later. A trail of stolen goods may help solve a murder. 2026-04-19 A police officer claims his estranged wife's shooting death was a suicide, but investigators think it was a murder. 2026-04-19 When firefighters find a family dead inside their home, it appears to be a murder-suicide; clues at the scene lead investigators to believe otherwise. 2026-04-19 A couple's murder leads investigators into the world of white supremacists and a string of hate crimes. 2026-04-19 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. 2026-04-19 A search in Virginia's DNA databank reveals the identity of a news producer's murderer. 2026-04-19 A homicide detective claims his wife accidentally shot herself in the head, but the evidence indicates otherwise. 2026-04-19 Officials probe the death of a woman investigating the possible side effects of the drug she was prescribed for bipolar disorder. 2026-04-19 A chip of stainless steel brings a killer to justice 20 years after a woman's body is found in a ravine. 2026-04-19 An 11-year-old girl is sexually assaulted and shot twice at close range. 2026-04-19 A woman is killed weeks before testifying against the man who sexually assaulted her. 2026-04-19 New York police hunt the Zodiac killer after a series of deadly attacks. 2026-04-19 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? 2026-04-19 A child's memory, a diary and a forensic psychologist help investigators solve a young woman's murder. 2026-04-19 Investigators weigh several theories while probing the death of a retired police officer, including a botched robbery and suicide. 2026-04-19 Stories from across the world and refreshing conversations with Audie Cornish. 2026-04-19 Stories from across the world and refreshing conversations with Audie Cornish. 2026-04-19 Melanie Zanona; Catherine Lucey; Isaac Arnsdorf. 2026-04-19 Pathologist examining the death of a politician who was running for re-election finds tiny puncture wounds at the autopsy. 2026-04-19 A Naval officer who threatened to go public with tales of on-the-job sexual harassment and assault is brutally murdered, but when investigators find the allegations could be part of an elaborate scheme for money, they turn to forensic science. 2026-04-19 A man is found stabbed to death after a night in a strip club; a drop of blood on a bedspread becomes critical evidence five years later. 2026-04-19 After police identify a murder victim thanks to her butterfly necklace, they discover several co-workers had vendettas against the victim. 2026-04-19 The brutal murder of a construction site foreman looks like the work of a disgruntled employee, but forensic science points to an unlikely suspect. 2026-04-19 A shooting victim mutters the name of her apparent assailant before dying, but fingerprint comparisons, handwriting analysis, ballistics and DNA testing show someone else close to home is the true killer. 2026-04-19 A woman's story seemed far-fetched; she tells investigators that a man broke into her home wearing only underwear and gloves, killed her boyfriend and raped and terrorized her. 2026-04-19 After a Delaware man's mother is found dead, he tells a story that's so improbable police think it can't possibly be true. 2026-04-19 A family vacation turns into a terrifying search for a missing wife and baby, then becomes a manhunt for a killer who committed a horrific crime. 2026-04-19 A DNA dragnet catches a killer eight years after the kidnapping, rape and murder of a college coed in Oklahoma. 2026-04-19 A nosy neighbor with a disturbing obsession becomes a suspect in a woman's murder at an upscale apartment complex; police discover an incredible link to an unrelated murder thousands of miles away. 2026-04-19 A college student turns up dead and her boyfriend becomes a prime suspect when blood splatters are discovered on his wall. 2026-04-19 Texas police hunt frantically for a brutal rapist. No one knows where he'll strike next, but given the increasingly violent nature of his crimes, he must be found soon. 2026-04-19 When detectives find a mismatched button in relation to a woman's death, they know they can follow the clue back to the killer. 2026-04-19 When 15-year-old Marlene Miller was murdered, it would take 24 years and several retrials before forensic scientists discovered the evidence to bring her killer to justice. 2026-04-19 Detectives use a forged signature to find a woman's abductor. 2026-04-19 A woman is killed two days before she was scheduled to testify against a man accused of assaulting her and the prime suspect has an alibi. 2026-04-19 A bite mark is all the evidence needed to convict a suspect who was robbing tourists in Florida. 2026-04-19 Technology able to analyze human bite-marks yields information on a woman's death. 2026-04-19 A death in Pennsylvania is strikingly similar to one in North Carolina. 2026-04-19 When a nurse starts experiencing a variety of flu-like symptoms, she discovers that she is HIV-positive; she learns that her infection was not accidental. 2026-04-19 Time of death becomes pivotal when a pregnant woman is found murdered in her air-conditioned bedroom. 2026-04-19 An obscure print found at a crime scene. 2026-04-20 A diner in a small town, an endocrinologist and a forensic botanist help destroy a prime suspect's alibi. 2026-04-20 Neighbors do not hear the gunshots when a union official is killed in his home. 2026-04-20 A man tells police he shot an intruder who murdered his wife; forensic evidence leads police to re-examine the man's motives. 2026-04-20 A police officer claims his estranged wife's shooting death was a suicide, but investigators think it was a murder. 2026-04-20 When firefighters find a family dead inside their home, it appears to be a murder-suicide; clues at the scene lead investigators to believe otherwise. 2026-04-20 The bodies of two young women are found in the ashes of an apartment fire. 2026-04-20 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. 2026-04-20 After a Connecticut man's body is found in a burning rental car on a Mexican highway, an insurance company suspects a scam. 2026-04-20 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. 2026-04-20 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. 2026-04-20 A man is found dead in his Michigan auto-salvage shop. 2026-04-20 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. 2026-04-20 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. 2026-04-20 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. 2026-04-20 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. 2026-04-20 Investigators determine if a computer crash which almost ruined a manufacturing company was accidental or deliberate sabotage. 2026-04-20 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. 2026-04-20 The derailment of the Sunset Limited was the deadliest train crash in U.S. history killing 47 passengers and crew with several more injured. 2026-04-20 Arson investigators attempt to determine the cause of the 1987 fire at the Kings Cross Underground Station in London. 2026-04-20 A canine behaviorist uses the family dogs, who are the only witnesses, to find the murderer of their owner. 2026-04-20 Investigators see through a killer trying to cover his tracks by staging the crime scene to learn what really happened. 2026-04-20 The anchors share the latest stories about significant events that take place across the world and interview prominent figures. 2026-04-20 The anchors share the latest stories about significant events that take place across the world and interview prominent figures. 2026-04-20 The anchors share the latest stories about significant events that take place across the world and interview prominent figures. 2026-04-20 A woman heads home after church, but never makes it there alive, triggering a homicide investigation. 2026-04-20 Volunteers and police spend weeks searching for a missing girl. A psychic later leads them to a field where the body was found. 2026-04-20 Forensic investigators try to stop a killer who is apparently responsible for two slayings in a community in South Carolina. 2026-04-20 When DNA proves that a man who practically admits to a brutal attack is innocent, police wonder why he is willing to take the blame. 2026-04-20 When a businessman is murdered, motives and suspects are plentiful. Was it simply a disgruntled employee or client? Or do some racy photos hold the clue to the crime? 2026-04-20 A family break turns into a nightmare when the wife is found face-down in a lake; with no idea whether it was murder, an accident or suicide, police turn to a new forensic technique. 2026-04-20 When friends see a woman in the back of a car flailing her arms and screaming, they assume she is having fun, but when they later come upon a jacket and a pool of blood, they realize they witnessed an abduction in progress. 2026-04-20 An attack on a couple's home leaves the husband dead, the wife gravely injured and their son as a prime suspect; hundreds of miles away, a DNA sample may lead to the killer. 2026-04-20 Detectives think they've solved a murder when they find the weapon and victim's blood in a man's flat, but the evidence may have been planted. 2026-04-20 Detectives search for the bombers of two churches in Illinois, hoping that the materials used in the remnants of the handmade bombs will offer the clues to catch the culprits. 2026-04-20 There was no apparent reason for the young, healthy college student to be dead; but when the medical examiner found the tiniest of clues during the autopsy, investigators were able to unravel the mystery of betrayal and revenge. 2026-04-20 A woman is stabbed a hundred times and her body positioned in a suggestive manner. This could be a hate crime against women. 2026-04-20 A couple's murder leads investigators into the world of white supremacists and a string of hate crimes. 2026-04-20 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. 2026-04-20 A search in Virginia's DNA databank reveals the identity of a news producer's murderer. 2026-04-20 A homicide detective claims his wife accidentally shot herself in the head, but the evidence indicates otherwise. 2026-04-20 Officials probe the death of a woman investigating the possible side effects of the drug she was prescribed for bipolar disorder. 2026-04-20 A chip of stainless steel brings a killer to justice 20 years after a woman's body is found in a ravine. 2026-04-20 An 11-year-old girl is sexually assaulted and shot twice at close range. 2026-04-20 A woman is killed weeks before testifying against the man who sexually assaulted her. 2026-04-20 New York police hunt the Zodiac killer after a series of deadly attacks. 2026-04-21