The principal duties of the Attorney General are to:
Represent the United States in legal matters.
Supervise and direct the administration and operation of the offices, boards, divisions, and bureaus that comprise the Department.
Furnish advice and opinions, formal and informal, on legal matters to the President and the Cabinet and to the heads of the executive departments and agencies of the government, as provided by law.
Make recommendations to the President concerning appointments to federal judicial positions and to positions within the Department, including U.S. Attorneys and U.S. Marshals.
Represent or supervise the representation of the United States Government in the Supreme Court of the United States and all other courts, foreign and domestic, in which the United States is a party or has an interest as may be deemed appropriate.
Perform or supervise the performance of other duties required by statute or Executive Order.
Where in that list does it say "Turn a local investigation into a personal vendetta and use federal resources in an attempt to create a civil rights case against a citizen."??
If the story I read yesterday is true, that Michael Brown not only assaulted officer Wilson and tried to take his gun but then charged the officer when ordered, at gunpoint, to stop, there is no civil rights violation. Some will say "But he was unarmed!" And that's true - he was. However, when an 18 year old, 300 pound man, who has already assaulted you and attempted to take your weapon from you, refuses orders to cease his actions and charges you with violent intent, most likely to try again to take your weapon and use it against you, then the shooting of that person will most likely be considered justified.
Note - I 'm not saying that's what happened. That is (allegedly) Wilson's version of the story as told by a friend of his. Whether it is true or not remains to be seen as the investigation continues. A forensic team should be able to tell, from the position of the body in the street and any marks on the body, whether Brown was on his knees with his hands up, as is being said by people in the community, or whether he was running toward the officer.
If Brown was "executed" as his friends and neighbors say, then Eric Holder has a case. If it turns out Wilson's story is accurate then there is no case, unless Holder wants to interpret the facts in his own distorted way. But Holder has his own agenda so I wouldn't put that past him.
The presence of the FBI in Ferguson is premature and sends the wrong message to the public. Rather than saying "We just want the truth to come out," it says "We are here to build a civil case against Officer Wilson one way or another." And that's the wrong message for the federal government and the Attorney General to send out. Shame on you, Mr. Holder. Show some integrity.