An IAM spokesman earlier said it was still awaiting formal identification of the victims, but that their families had been informed.
So far, 582 corpses have been released from a nearby morgue, where thousands of body parts lie stacked in bags awaiting identification.
The victims identified number 2,070 while body parts in more than 7,000 bags still await identification.
It discovered about 350,000 sources, many of which are still awaiting identification.
"We can tell them we're still awaiting official identification of the body," he said.
His body lay among 147 others awaiting identification, where a rescued American identified it from newspaper photographs.
There are currently more than 19,900 pieces awaiting identification.
The police notified the boy's family that a body had been found but are awaiting positive identification today by the city medical examiner.
The teen-age girl was brought out like others, bundled in a blanket, dead, awaiting identification.
Bodies had been laid in neat rows in the big square at the center of the Strip, awaiting identification and shriving.