Ferguson Mayor James Knowles confirmed yesterday the source of the leaks to CNN about him, his administration and the police department, was (and is) from the Department of Justice.

Ferguson mayor Knowles tells me that he was told by CNN that their source is DOJ.

— Chuck Ross (@ChuckRossDC) October 29, 2014

In addition last week the New York Times confirmed the source of their article, about evidence in the Mike Brown shooting, was also the DOJ in Washington DC.
Knowing the DOJ are the leakers, watch this video:

In addition Trymaine Lee (MSNBC) is again the recipient of DOJ leaked information today:
[…] The plan, described by a source with direct knowledge of the plans as “extremely delicate,” said the details are still being hashed out in closed-door meetings between Ferguson city and St. Louis County officials who have sought consultation from the Justice Department, which is conducting a civil rights investigation into the shooting death of unarmed black teenager Michael Brown in August.
The source, who spoke on the condition of anonymity, said the plan could include not just the resignation of Chief Jackson but the resignation of Officer Darren Wilson, who shot and killed Brown on a Ferguson street, setting the city into weeks of unrest.
The source who spoke with msnbc said Chief Jackson and Officer Wilson are expected to be eased out of the Ferguson police force, before what could be a full-scale take over of the Ferguson force by the St. Louis County police.
[…] A source within the Obama administration would only confirm that plans for a shakeup of the Ferguson Police Department were in the works, but that details have not been cemented.
The plans offer a glimpse into the behind the scene efforts to heal this blistered city pulling apart at the seams as community leaders and residents await a grand jury’s decision as to indict or not to indict Officer Wilson in Brown’s death. (read more)