A hospital is supposed to be a place of healing. For Jill Cahill, it became the setting of her final betrayal.In 1998, Jill lay recovering in a Syracuse hospital after surviving a brutal attack by her husband, Jeff. But when doctors believed she was on the mend, Jeff returned in the dead of night. Carrying a vial of cyanide, he slipped into her room and silenced her forever.The shocking murder sparked outrage far beyond Central New York. For prosecutors, it was the textbook case for capital punishment: a man who killed his wife to stop her from testifying. For Jeff's defense, it was proof of why the death penalty was flawed. And for Jill's grieving family, it was a fight to make sure her voice was heard - even after death.Drawing from court records, media reports, and eyewitness testimony, The Cyanide Killer reconstructs the crime that shook a city and inflamed one of New York's fiercest debates over justice, punishment, and mercy.Raw, riveting, and unforgettable, this book pulls you into the heart of a true crime tragedy and asks the hardest question of all: What does justice really mean when love turns lethal?