Just got back from Jack Evans Police Headquarters for Chief David Brown's press conference accompanying the release of dash-cam video in which several officers assaulted Andrew Collins on September 5th. On the video, officers can be seen doing what Chief Brown called "making contact" with Collins -- kicking, punching and beating the man with a baton after chasing him at speeds of close to 60 mph through southeast Dallas, from Martin Luther King Jr. Boulevard to South Lamar, and repeatedly bumping his cycle with their squad car. Collins initially failed to pull over after officers turned on their lights and sirens when they spotted Collins riding his cycle on a sidewalk.

DPD has recommended that the Dallas County District Attorney's Office charged three officers with felony tampering with physical evidence; in the video, which follows, two-year DPD veteran Henry Walter Duetsch can be seen and heard whistling while adjusting a dash-cam away from a view of the officers and Collins. DPD has also asked the DA's office to charge two other officers -- Paul Gregory Bauer and Kevin Ray Randolph, both hired in early 2009 -- with misdemeanor assault. Randolph was terminated today. Three more officers are restricted to desk duty during an ongoing investigation by Internal Affairs and the FBI.

In his comments, which followed Mayor Tom Leppert's thoughts on the subject earlier in the day, Chief Brown said he expected citizens of Dallas to "hold [him] accountable for ensuring that Dallas officers treat all citizens with fairness and compassion." Quoting principles from Sir Robert Peel, which were also sent to all DPD officers, Brown emphasized impartial service to the law and restraint with regard to physical force. The chief refused to answer questions about his personal, "raw emotion" response to the incident. Brown said repeatedly that he hopes citizens will follow his calm, measured approach: "I don't do raw emotion. It's never good for anyone, it really isn't."

The videos follow, as does the entirety of Chief Brown's statement to the media.

And the second video, in which you'll see Officer Deutsch adjust the dash cam.

Here are Chief Brown's prepared remarks: