Attorney General Eric Holder calls his trip to troubled Ferguson, Missouri "constructive." In a Justice Department news conference, Holder vowed that the investigation into the death of an unarmed black teenager will be fair, thorough and independent. Holder said few things have impacted him as much during his career as his visit to Ferguson. Michael Brown was recently shot and killed by a police officer, prompting violent protests and clashes with police.

While in Ferguson this week, Holder met with FBI and Justice Department officials who are investigating the shooting. He also met with community leaders and the family of Michael Brown. He said he asked for patience and warned that a thorough investigation "will take some time." In addition to the federal probe, a St. Louis County Grand Jury investigation is underway. {Metro Networks Inc.)