The intruder, identified as Jonathan Tran, was able to jump over three different fences, including at least one between the Treasury Department and the east area of the White House complex shortly before midnight March 10.

Tran was able to scale that particular area of the fence without setting off alarms because they had been removed, leading to confusion among officers about his whereabouts and whether an intruder was inside the White House complex, the sources told the Examiner.

http://www.washingtonexaminer.com/article/2617925/