The Crossville Police Department is investigating a threat made to a pharmacy. Officers responded Saturday to Walgreens where a male subject in his early 50’s came into the business wanting to purchase a one day supply of his prescribed medication. When pharmacy employees told him they could not do that, he refused to leave and caused a disruption. The man eventually left but not after saying the next time he came back he was bringing a gun and was going to get his medication himself even if he had to go over the counter and get it. Officers plan to make contact with the subject and ban him from the store.