The account that stated David and Taylor Driscoll were the gunmen came from Campbell's wife. Despite this claim, hoofprints at the scene of the crime indicated that an additional three horses had been there. The Regulators followed these prints back to the Driscoll home. Once there, accompanied by Ogle County Sheriff William T. Ward, the angry group confronted John Driscoll. After questioning by Ward and his accompanying mob, the sheriff was satisfied that John Driscoll was involved in Campbell's murder and arrested him "on suspicion of being accessory to the murder". While David and Taylor Driscoll, the gunmen, fled that fateful day, William and Pierce Driscoll were arrested by a group of Regulators from Rockford.