William Quantrill and a band of guerrillas cross the Missouri border to raid the town of Aubry in Johnson County, Kansas. Quantrill had previously left General Sterling Price’s army after their victory in the First Battle of Lexington. At Aubry, three citizens are left dead as the guerrillas carry away a significant amount of loot. Raids like the one against the small military post at Aubry, and especially the infamous 1863 raid on Lawrence, turn Quantrill into the most notorious guerrilla leader in Missouri.