A nurse is in critical condition after being brutally attacked by a patient while on duty at a Brooklyn Hospital, police said. Police said the 40-year-old male patient attacked Evelyn Lynch, 70, at Brookdale Hospital and Medical Center on Friday afternoon, allegedly beating her unconscious, WCBS 880?s Jim Smith reported. Investigators say the nurse was removing Kwincii Jones' catheter in his fifth-floor room when he knocked her to the ground and began beating her repeatedly, CBS 2?s Don Champion reported. An acquaintance of the victim told CBS 2 that a fellow nurse heard the commotion and called for help, an action that may have saved the victim's life.