Motive sought in California law firm shooting with 2 dead

Robert Casillas/Los Angeles Daily News via AP Employees from a nearby business sit with police after the Long Beach police responded to an active shooter in Long Beach, Calif., Friday. Police say a shooting at a business in Southern California has left at least several people dead, including the gunman. Long Beach police on Friday called the shooting "workplace violence."

LOS ANGELES — Police are trying to learn what motivated a man to walk into a law firm where he worked and shoot two of his colleagues before turning the gun on himself.