 A helicopter standing by to transport one was instructed instead to standby at a hospital in nearby Cobleskill, while the patients were transported there by ground so as to avoid disrupting treatment one was already receiving.One was pronounced dead on arrival; the other was transferred to the helicopter and taken to Albany Medical Center, where they were likewise pronounced dead.An eyewitness claimed the crash sounded like an explosion, and when she exited her parked car, she saw a body on the ground, and then registered the screaming from bystanders.