3 Black Widows vs.The Forensics That Caught Them _ The New Detectives

Three women. Three husbands dead. Three life insurance policies cashed. Each thought she had committed the perfect crime. Each was undone by the same science: toxicology.In this episode of The New Detectives, the groundbreaking Discovery Channel series that aired from 1996 to 2004 and inspired CSI: Crime Scene Investigation, forensic toxicologists examine cases of black widow murderers who poisoned their spouses for financial gain. The first case involves a wife who used arsenic, a tasteless and odorless heavy metal, to slowly poison her husband over several months. Investigators detected the toxin by analyzing hair and nail samples, where arsenic accumulates over time. The second case involves a woman who used ethylene glycol, the active ingredient in antifreeze, which causes a sweet taste that can mask the poison. The third case involves a wife who used thallium, a heavy metal that produces symptoms mimicking other illnesses, making detection difficult without specific testing. In each case, forensic scientists found the poison hidden in the victim's tissues, proving that death was not natural. Turn down the lights, put on your headphones, and press play because the black widow thought she was invisible. The toxicologist proved otherwise.