A man and woman were clinging to life with multiple stab wounds after an attack in Brooklyn Thursday night, cops said. The victims, both 49, were on E. 69th St. near Ave. M in Bergen Beach when they were attacked around 7:36 p.m., said police. Medics rushed the man and woman, both suffering a number of stab wounds, to Brookdale Medical Center in critical condition, cops said. A law enforcement source told the Daily News police are searching for a suspect spotted fleeing in a blue Toyota SUV. ...read more read less