Police have vowed to never give up hunting the killer of a nine-year-old girl whose abduction and murder in Texas 20 years ago led to the creation of the Amber Alert system. Amber Hagerman was taken while riding her bicycle outside an abandoned grocery store on January 13, 1996. Amber was found dead four days later in a drainage ditch a few miles away. Investigators said in a press conference that they will continue to work the case until Amber's killer is found. #InsideEdition