An upstate New York woman choked a nightclub bouncer until he fell unconscious, claiming he groped her until she realized one of her friends was behind the butt grab, police said. Kierah Lagrave, 22, of Plattsburgh, had been at the Five1Eight nightclub on October 20 when she noticed someone slap her butt from behind. The woman then walked up to the bouncer, strangling him until he fell unconscious and dropped to the floor, police said. Authorities tracked down and arrested Lagrave last Thursday on a charge of second-degree strangulation and later released her on her own recognizance.