The second pilot involved in a mid-air helicopter collision over New Jersey over the weekend has died, officials said Monday.
Kenneth L. Kirsch, 65, of Carneys Point, died from his injuries at Cooper University Hospital in Camden, Hammonton police said.
Police also released the identity of the pilot of the other helicopter involved in the collision. Michael Greenberg, 71, of Sewell, was pronounced dead at the scene on Sunday, authorities said…