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Julie Jacobson, Associated Press
A New York Police officer watches as a man attempts to scale Trump Tower, Wednesday, Aug. 10, 2016, in New York. The man spent more than 2 hours scaling the glass facade of Trump Tower using large suction cups, climbing as high as the 21st floor before police officers grabbed him and hauled him to safety through an open window.

NEW YORK — Prosecutors say the man who scaled the all-glass surface of Trump Tower last week had planned the climb, ordering equipment and practicing ahead of time.

An assistant district attorney told a Manhattan judge Wednesday that 19-year-old Stephen Rogata waited until his parents were out of town before driving to New York City ahead of the Aug. 10 climb.

The Great Falls, Virginia, man was held on $10,000 bond following his arrangement on misdemeanor reckless endangerment, trespassing and other charges.

He used suction cups, a harness and ropes to climb from the fifth floor to the 21st floor of the Manhattan skyscraper.

Republican presidential nominee Donald Trump wasn't in the building during the climb.

Rogata's attorney called the episode "profoundly stupid." She says her client is receiving needed mental health treatment.