On September 27, 2007, Jessica Delaine was working as a U.S. Postal employee at the Meridian Main Post Office when she got into a verbal argument with her supervisor. Eventually, the supervisor requested that Delaine clock off work and leave the premises. Approximately 45 minutes later, she entered the Meridian Main Post Office, revealed a pistol to her co-workers, and told them she was going to wait by an office building and shoot her supervisor when he left work. After talking to her, Delaine’s co-workers convinced her to leave the premises
source: US Attorney's Office via PostalReporter.com