Nearly two weeks after adopting an 18-year-old rescue named Poochie, the country music star's wife took to Instagram to share the devastating news that the Aussie mix went to doggy heaven.

In the most recent slaying, gunmen ambushed Wardell “Poochie” Fouse, a longtime Knight confidant, on July 24, firing 10 shots into his back as he rode a motorcycle in Compton.

Poochie the senior dog was a "forever hospice foster" before the country star decided to adopt the dog Kelli Bender is the Pets Editor at PEOPLE. She has been working at PEOPLE since 2013. Her ...