Who is Amber Hagerman?

Is she the girl that created the Amber Alert system? What happened to her and whoever did that to her was the person ever caught?

?2021-01-16T15:23:23Z

An Amber Alert is a message distributed by a child abduction alert system to ask the public for help in finding abducted children. It originated in the United States in 1996.
Amber Rene Hagerman did not create the Amber Alert, but the Alert was named for her. She was a nine year old child who was abducted while riding her bike with her brother in Arlington, Texas in 1996. Four days after her abduction, near midnight, Amber's body was discovered in a creek behind an apartment complex with severe laceration wounds to her neck and naked. The site of her discovery was less than five miles (8 km) from where she was abducted. As of today her murderer has not been caught.