Sung Park, 22, died on February 11, 2007, from injuries sustained in a violent altercation outside Club Boss at Harrison and Lapu Lapu Streets in San Francisco. The fight began on February 4, 2007, as Park was leaving the club with friends and confronted by another group of Korean males; Park was struck multiple times, fell and hit his head, and later died in hospital a week after the assault.

The incident occurred as nearby City Nights was also closing, so the area was busy and there were likely many potential witnesses. The San Francisco Police Department has offered a $10,000 reward for information leading to identification and arrest, but the case remains unsolved. Authorities say gathering reliable testimony in the chaotic scene has been a key challenge.

If anyone witnessed the fight outside Club Boss on February 4, 2007, or has information that might help identify those responsible, please contact the San Francisco Police Department.