Posted: 9:08 p.m. MST
When Sgt. Daniel Cornier returns home from K-9 training in Texas, he will be greeted by only one of his four-legged friends.
The other passed away from old age on Veteran's Day—an appropriate date to say goodbye.
"I didn't want to believe it initially, and I was just so much more hurt that Danny wasn't here," said family member, Heather Donovon. "That's his night guardian."
His name was Chaak-E140. Called by many of his fellow Marine's, Chaak Daddy.
"It was just good vibes off of Chaak all the time,” added Donovon. “Just the unconditional love he gave Danny, and us, and everybody who was around."
Chaak served in the U.S. Marine Corps. for 11 years as a bomb sniffing dog.
He retired out of Camp Pendleton and was adopted by his current handler Sgt. Daniel Cornier.
Cornier and Chaak trained together out of Yuma Proving Ground before their deployment in 2011.
During his four deployments, Cornier says Chaak saved his life on multiple occasions.
He says not being by his buddy's side during his final breathes was the hardest part.
"I felt hopeless,” said Sgt. Cornier. “I felt like if I would have been there that night that he was sick, I could have done something. He saved my life. He saved other soldiers’ lives. He was a big tribute to the family also. He was a family member."