Police sources identified the 20-year-old man who jumped to his death from a Battery Park City high-rise and landed atop Stuyvesant HS on Friday as a Long Island resident.
The jumper, who lives in Huntington, sneaked past desk staff at Tribeca Pointe, a 42-floor rental complex, then climbed to the roof at around 4:20 p.m., police sources said.
He ran to the ledge and stopped, apparently having second thoughts — before plunging to his death, said police, who reviewed surveillance-camera footage.
A resident on the 10th floor of the complex spotted his body on the roof of the high school, minutes later, at 4:30 p.m., cops said.
The man, whose name is being withheld by The Post, was spotted running on the sidewalk near the high-rise not long before he jumped.
Cops said no criminality is suspected.