article_snippet: the boy's body was never recovered.
article_snippet: Etan Patz was just six when Etan Patz vanished while walking to Etan Patz school bus in Manhattan in 1979 .
article_snippet: On the missing-child poster, Etan's weight was listed as 50 pounds.
article_snippet: But prosecutors say the measurement was a mistake made by frantic parents, and medical records from just a few months before Etan vanished have the boy weighing about 37 pounds.
article_snippet: the boy mother, Julie, testified that the boy was very small for the boy age.
article_snippet: the boy is Etan's size and shape but isn't identified.
article_snippet: Etan's parents helped galvanize the national missing-children's movement.
article_snippet: May 25, the day Hernandez disappeared, is National Missing Children's Day.
highlights_snippet: Etan Patz, six, vanished while walking to the school bus alone for the first time and the boy's body has never been found .