(MT. VERNON, IL) — Authorities with the Mt. Vernon Police Department were called to an initial report Sunday of burglary at ABC Self Storage. Upon further investigation, they arrested 21 year old Joseph Ellis of Mt. Vernon on charges of criminal trespass to land, criminal trespass to vehicles, criminal damage to property less than $300, illegal possession of ammunition without valid FOID card, and theft of labor, services, or property. Ellis was reportedly located in a camper stored on the property and had reportedly hooked up power to the camper using electricity from the storage business. Further investigation found open ammunition within the confines of the camper. Ellis was transported to the Jefferson County Justice Center for formal filing of charges and the setting of bond.