Graves County Sheriffâs Office investigates multiple storage unit burglaries The units were at a storage facility on Kentucky Highway 80 East, south of Mayfield. (Source: Graves County Sheriff's Office) By Ashley Smith | April 1, 2021 at 3:41 PM CDT - Updated April 1 at 3:41 PM MAYFIELD, Ky. (KFVS) - The Graves County Sheriffâs Office is investigating the overnight burglaries of several storage units on April 1. The units were at a storage facility on Kentucky Highway 80 East, south of Mayfield. Police believe the thefts occurred between midnight and 7 a.m. The suspects broke into both outside and inside climate controlled units. Large quantities of ammunition, some firearms, tools, electronic equipment, and a quantity of liquor, totaling over $33,000 in value, were stolen from the units