SANTA ANA (CNS) - A 23-year-old woman beaten into unconsciousness outside a Santa Ana nightclub was disconnected from life-support machines and pronounced dead.

Annie Hung ``Kim'' Pham of Westminster was pronounced dead at , Santa Ana police Cpl. Anthony Bertagna said. Pham was declared brain dead two days ago, but was kept on life-support machines since then to harvest her organs for transplant donations, OrangeCounty sheriff's Lt. Jeff Hallock said.

Pham was beaten about Saturday outside the Crosby Bar and Nightclub, 400 N. Broadway.

A woman suspected of taking part in the attack was arrested Monday, Bertagna said. Investigators were showing photo line-ups to about eight or 10 witnesses today, Bertagna said. The suspect's name has not been released.

Four other suspects -- two women and two men -- were still at large, police said.

Pham was waiting to get into the nightclub with friends when an argument started with another group of patrons, according to police. The dispute escalated into a fight that left the victim severely beaten.

Patrol officers called to the scene found Pham unconscious on the sidewalk, police said.

Pham graduated from ChapmanUniversity last year with a psychology degree and had worked to raise money for breast cancer awareness, The Orange County Register reported.

Downtown Inc., a coalition of Santa Ana businesses, offered a $5,000 reward for information leading to the attackers, Bertagna said.

Anyone with information or cellphone video of the brawl was asked to call police at (714) 245-8390.