Investigators say two men showed up at an apartment on Belmont near San Pablo early this morning. A disturbance broke out and the man who lived at the apartment was shot and killed.
It's unclear if the children witnessed their father's murder.
Police are not releasing a motive, but they are questioning at least one witness. A woman, believed to be the significant other of the victim, was inside during the shooting and is cooperating with investigators.
The children were taken to police headquarters by chaplains.
Stay with ABC 30 and ABC30.com for the latest on this developing story.