HLN HD 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. 2026-06-12 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. 2026-06-12 A man is found dead in his Michigan auto-salvage shop. 2026-06-12 A garbage bag leads police to a child's killer. 2026-06-12 An investigation into the disappearance of a young woman uncovers a tooth that helps police solve a crime without a body. 2026-06-12 The sensitive nose of a forensic examiner sniffs out murder. 2026-06-12 Discovering that an assault suspect is left-handed is crucial to a police investigation dating back 16 years. 2026-06-12 Forensic scientists try to find a way to "lift" the serial number from a shotgun that's their only clue in a case. 2026-06-12 Investigating the worst arson spree in U.S. history -- a rash of more than 75 fires near Seattle. 2026-06-12 Computers aid the police and FBI in solving a string of crimes. 2026-06-12 Using an anonymous letter and geographical profiling, investigators close in on a serial rapist, and a cleverly obtained DNA sample confirms their suspicions. 2026-06-12 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. 2026-06-13