Investigators say 25-year-old Brandon Andrews was stabbed to death several times in the chest during an argument in a convenience store on South Post Oak on Friday.
Andrews got in a car with his father and daughter and tried to drive to the hospital, but he quickly collapsed and crashed the car.
Police say Phillips took off in a gold Buick sedan.
Phillips is a person of interest in the stabbing, pending Andrews' autopsy results.
If you have information about her whereabouts, call police.