BRENTWOOD, Tenn. (WZTV) – K-9 Lexie, a retired Brentwood Police Department officer, passed away this week at 15 years old. K-9 Lexie was a female Belgian Malinois who served BPD from August 2010 until her retirement in February 2020. She then lived with Officer Holder, who she was teamed up with in 2012, and his family until her passing.