She was afraid that even calling police would get her killed, but she called again and again. Webfor a few months, deanna cook's story dominated a news cycle that did not yet have such a short attention span. Her death sparked an investigation into dallas pd's desperately. Family of deanna cook, woman murdered during botched 911 response, sues city [updated] [update, 10:30 a. m. Webtonyita hopkins breaks her silence on answering the chilling 911 call in which deanna cook is heard pleading for her life. Hopkins describes a 911 call center. Webdeanna cook's name became synonymous with domestic violence in dallas after her 2012 death. But despite a swift arrest, the investigation into her homicide. Webthe slaying of deanna cook, captured on a 911 call, was one of several deaths that sparked dallas to reform how it handles domestic violence cases.