Justice Department Will Investigate Entire Ferguson Police Force

The Justice Department is expected to announce Thursday that it will open a broad civil rights investigation into the Ferguson, Mo., Police Department in the wake of the killing of an unarmed 18-year-old black man that touched off weeks of unrest.

The new civil rights investigation will be in addition to the federal criminal probe already underway as to whether Officer Darren Wilson, who is white, violated Michael Brown's civil rights or used excessive force after a confrontation between the men Aug. 9.