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Pittsburgh zoo removing deck where boy fell

PITTSBURGH — The Pittsburgh Zoo is removing an observation deck from which a 2-year-old boy fell before he was fatally mauled by wild African dogs in an exhibit below, a district attorney said Thursday.

Allegheny County District Attorney Stephen Zappala Jr. met with zoo leaders and toured the exhibit for about two hours before issuing a statement confirming the platform’s removal.

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Zappala announced last week that Elizabeth Derkosh, 34, would not be prosecuted in the Nov. 4 death of her son, Maddox. The boy, who had vision issues, leaned forward and fell into the exhibit after his mother lifted him onto a wooden rail overlooking the dogs’ enclosure. He was immediately attacked by the dogs and bled to death.

Zappala called Maddox’s death a ‘‘tragic accident.’’ He said his office is still investigating whether anyone at the zoo might face criminal charges for contributing to the boy’s death and how such accidents can be prevented.

Officials at the Pittsburgh Zoo & PPG Aquarium had said the exhibit would remain closed indefinitely and the dogs were being quarantined for at least 30 days, but they have not said whether the dogs would again be exhibited in the same open-air enclosure or in some other manner.

Zappala’s statement said he met with zoo president, Dr. Barbara Baker, and city police who responded the day the boy was killed.

The meeting ‘‘included a walk-through of the exhibit and was a productive step toward ensuring that this tragedy will not reoccur in the future,’’ the statement said.

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