A United Dairy Farmers employee is accused of telling his roommate tips on how to rob the store.
After the night of Februaury 5th, both men are facing charges.
Zachary Roberts is charged with aggravated robbery.
Tyler Madden is charged with complicity.
Police say Roberts robbed the UDF in Maineville at knifepoint that Tuesday afternoon.
Madden was working in the store.
Police say when they questioned Madden, he admitted he told his roommate the layout of the store and the best time to rob it.
Both men are in the Warren County jail.