19 years ago, Brittany Phillips was found raped and suffocated inside her apartment in Tulsa, Oklahoma. She was murdered just short of her 19th birthday. To this day, Brittany's murder remains unsolved. That's why her mother is driving across the country in a "Caravan to Catch a Killer," with the mission to raise awareness about her daughter's case, and to bring justice for Brittany.

Dr. Maggie Zingman is Brittany's mother and the driver behind the caravan. She discusses the details of Brittany's homicide, the DNA developments that have come to light all these years later, and why she advocates for the families of other cold case victims as well.

If you have tips or information related to Brittany's murder, call (918) 596-9135 or visit brittanyphillipsmurder.net.

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