A source said he was arrested with a loaded gun after threatening to shoot Kirkpatrick.
Kirkpatrick and witnesses who corroborated the allegation prompted police to begin searching for Brooks. About 5:30 p.m., Brooks was seen driving in the area of Carey Avenue and Mt. Hood Street, where he was taken into custody without incident during a traffic stop.
Another Democratic source with knowledge of the situation said Brooks publicly threatened to harm Kirkpatrick because he was unhappy with the committee assignments given to him by Kirkpatrick. The 2013 Legislature begins Feb. 4.