Knoxville, TN (WOKI) The Knoxville Police Department is asking for your help in identifying a suspect who robbed a United States Postal Service mail carrier on June 10.

KPD officials have now released images of the suspect who attempted to take a universal Arrow Key from a USPS employee but made off with a “cluster” entry key instead. The employee was putting mail into apartment boxes in the 5200 block of Rockcrest Road Saturday when the suspect approached the mail carrier brandishing a gun and demanding the key.

Anyone with information is urged to contact the East Tennessee Valley Crime Stoppers at 865-215-7165 or the U.S. Postal Inspection Service at 1-877-876-2455.