Man kills baby at center of Amber Alert, child’s mother, then turns gun on self, authorities say

‏An Amber Alert was issued when the man killed his baby’s mom, then took the 1-year-old, authorities say.

What does AMBER Alert mean? Has it ever worked? Is it based on true story? What was before Amber Alerts? When did they start calling it an AMBER Alert? Where did the AMBER Alert originate? How did AMBER Alert Get the name AMBER Alert? Who started AMBER Alert?