City of Kings Mountain issued the following announcement on Sep 24.
The City of Kings Mountain would like to express our sincere condolences to the family and friends of Kings Mountain K-9 Handler/Officer, Carl Proper. Officer Proper began working for the Kings Mountain Police Department in 2018. In memory of Officer Proper, the lights at Liberty Falls Amphitheater will remain blue throughout the weekend. Officer Proper, you will be missed. Rest In Peace.
Original source can be found here.
Source: City of Kings Mountain