Hours after an Amber Alert was issued for Melina Frattolin on July 20, the 9-year-old was found dead in Ticonderoga, N.Y.

Learn how New York's AMBER Alert system works, activation criteria, recent cases, and what to do when you receive an alert.

Melina Galanis Frattolin, 9, was last seen in a white van on Saturday, July 19, at 9:40 p.m. local time, going southbound on ...