Federal investigators and New York City police are preparing today to dig beneath the streets near a Manhattan apartment building where 6-year-old Etan Patz disappeared 33 years ago.
The search for Patz has been one of the largest, longest lasting and most heart wrenching hunts for a missing child in the country's recent history.
Investigators are also reexamining the decades old assumption that Patz was abducted by convicted pedophile Jose Ramos. Ramos, now in prison for an unrelated case, was never charged with Patz's abduction.
At least two other potential suspects have been examined, sources told ABC News.
Patz vanished on May 25, 1979 in the SoHo neighborhood of Manhattan while walking alone to a school bus stop.
Patz became the first missing child whose face appeared on the side of a milk carton.
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