Las Vegas, NV - An officer who shot and killed a man who lunged at officers with a knife Tuesday has been identified as Kyle Prior, an eight-year veteran of the force, according to Metro Police.Officers were dispatched about 12:15 a.m. Tuesday to an apartment in the 1100 block of South Cimarron Road to investigate reports of a domestic disturbance, police said. After a woman and young child came out of the apartment, officers went inside and found a man hiding in a closet and armed with knife. After refusing to drop the knife, he was tasered. When that was not effective, he was shot. He later died at University Medical Center.