K9 Onyx – Cooke, Texas

Died 7/12/24
Handler – Deputy Ryan Thacker

K9 Onyx passes away following medical emergency

Today, we sadly announce the passing of K9 Onyx. On 07/12/2024, K9 Onyx suffered a medical emergency as she and her partner, Deputy Ryan Thacker were preparing to come on duty. K9 Onyx was transported to a Collin County Veterinary clinic for emergency surgery and sadly passed away during the surgery. K9 Onyx was a valuable member of this Department. Onyx was a full blood. Onyx began working for the Department in 2020. Onyx and her partner were responsible for numerous narcotics arrests and large currency seizures. Onyx also provided assistance to the other law enforcement agencies in this county when needed. Onyx will be deeply missed.

Submitted By Jim Cortina

James A. Cortina has been involved with police dogs since 1972 and currently on the Board of Directors for the Connecticut Police Work Dog Association Inc. Jim has been appointed as Treasurer since its inception in 1991. Jim is one of the charter members of the C.P.W.D.A. organization. Since 1975 he has been a certified professional dog trainer and received his Master Trainer Certification in 1985. During his career he has provided armed K-9 strike crowd control for security agencies in Connecticut and out of state security companies. In conjunction with other members of the Connecticut Police Work Dog Association Inc. Board of Directors, he helped to draft Connecticut Statute 53-247(e) "Intentional Injury or Killing of Police K-9" which was passed by the Senate in 1993 and also assisted in implementing the prestigious Daniel Wasson Memorial K-9 Award in 1992. In 1993 he helped coordinate the North American Police Work Dog Association Nationals in New London, Connecticut. He was appointed Training Director for the New London County Work Dog Association from 1985-1987. He performed decoy work for Connecticut Police Work Dog Association Inc. in police K-9 demonstrations, trained several local police department canines, and coordinated training workshops for out-of-state police departments. He participated in the United States Police K-9 Association Trials in Croton on Hudson, New York in 1985 as a decoy. He is an avid photographer and received photography awards in 1989, 1990, and 1991 and currently takes photographs for the Connecticut Police Work Dog Association Inc.