NEW YORK POST – A pedestrian casually strolling along a Midtown sidewalk Friday was crushed by a woman who jumped to her death from the window on the third floor of her apartment building.

The innocent bystander was on First Avenue near East 51st Street when the despondent woman leapt from the window at 3:15 p.m. and fell atop of her, cops said.

People attending a holiday office party rushed outside to help.

“We held her hand,” witness Meredith Murphy said of the injured pedestrian. “She was very scared and confused.”

As she lay on the pavement, she expressed concern about the ­condition of the jumper.