Carey was encamped with Quantrill and his band of raiders, which numbered nearly two hundred, in a wooded area north of Lamar, for several days before they finally rode out to meet up with a few stragglers who had been out visiting family. Quantrill had been corresponding with Col. Warren Lewis of the Missouri State Guard, and they both had their eye on the outpost located in Lamar at the courthouse. On November 4, Quantrill gathered up his forces and began the ride north. Carey and the few men who had come along with him were instrumental in giving information about roads and the location of troops, etc. Carey also suggested that they try to take out the prominent businessmen in town and their families, hoping to use the famous rebel as a means to get revenge on those he believed had done
