The body of the boy, believed to be between the ages of 8 and 12, was found by hikers near Las Vegas Friday morning.After a sketch of the boy was released to the media, a woman contacted police, saying it resembled her 8-year-old son, according to Las Vegas Metro Police Department Lt. Raymond Spencer.The mother later positively identified the boy after detectives showed her photos of his body, according to Spencer. The identification prompted an Amber Alert for the boy’s