Police and fire officials responded to reports of shots fired at the Long Beach Federal Building.
The Immigration and Customs Enforcement agent believed to have fatally shot a colleague who opened fire on a supervisor in Long Beach, Calif. is known for investigating sex crimes against children.
Perry Woo received the U.S. Justice Department's Officer of the Year Award for Missing and Exploited Children in 2004 for an investigation that led to the capture of eight alleged child molesters and pornographers. Authorities credit his work for rescuing 30 Mexican children, including an 8-year-old.
ICE is not publicly identifying Woo as the agent who killed his colleague, Ezequiel Garcia, after Garcia allegedly fired his weapon at ICE's second-in-command in the Los Angeles region.
However, an official familiar with the investigation of the shooting confirmed Woo's identity to The Associated Press on condition of anonymity because the source is not authorized to speak publicly.