Taser-wielding madman sparks mayhem in Washington Square Park, cops say

Mayhem erupted in beleaguered Washington Square Park early Saturday when a taser-waving madman armed with a knife sent park dwellers running out of the park — trampling a woman in the process.

The woman was left covered in blood after she was “run over” in the stampede to safety, police said. Dramatic images show the victim, 43, bleeding from her face. She was taken to Bellevue Hospital in stable condition with cuts, scrapes and bruises, cops said. Police collared a 42-year-old Manhattan man following the chaos. Jason McDermott is charged with menacing, reckless endangerment and criminal possession of a weapon.