Pedro Hernandez, a former bodega stock clerk, had confessed years after the 1979 crime to luring Etan Patz, 6, into a basement in SoHo. The case shook New York City.

"48 Hours" goes inside the painstaking investigation through the eyes of those who have spent more than three decades trying to find the 6-year-old boy and to bring closure to his heartbroken parents

Pedro Hernandez was sentenced to 25 years to life after confessing to the 1979 murder of the 6-year-old first-grader.