DALLAS -- A 911 call taker has resigned after she was suspended for mishandling a call from a woman who was being murdered.

Tonyita Hopkins answered Deanna Cook's 911 call as she was being attacked by a man and screaming on the phone. Cook's body was found two days later.

News 8 learned officers in the field knew only that they were going to a domestic disturbance call, and few details were provided to them by Hopkins. In fact, sources also tell us, the operator never relayed that Cook was being attacked.

An investigation of the incident led to an overhaul of the Dallas 911 call center.

Deanna Cook's family filed a lawsuit against the city and the police department.

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