BOONE COUNTY, Missouri- Boone County Deputy Chris Smith says his K9 partner Baron died during training Wednesday.

Baron was an eight year-old German Shepherd Dog and had served the Boone County Sheriff’s Department since 2012.

“It is with deep sadness that we must report the passing of K9 Baron. Baron has served the Boone County Sheriff’s Department for the past 6 years with his handler and K9 trainer, Deputy Chris Smith. Please keep Deputy Smith in your thoughts and prayers during this difficult time, ” the agency posted on Facebook yesterday.

Smith said the police dog collapsed during training for unknown reason and University of Missouri Vet School Emergency Room Staff efforts to revive him were unsuccessful

“Baron was a badass; truly one of the best police dogs I have ever encountered. He was also a big happy goofball, full of life with an amazing sense of humor. His service on the street and his role as a teacher in our K9 school were unparalleled,” Smith said.

Smith has trained and certified many police dogs, including one serving the Lebanon Missouri Police Department.

The Boone County Sheriff’s Department said during his service, Baron had assisted with numerous drug arrests and the arrest of fugitive subjects.

Possible plans for a service were not available.