A bomb-detecting dog with bone cancer was given an official send-off before he was put down. Cena served with Corporal Jeff DeYoung in Afghanistan before he adopted the pooch after DeYoung was diagnosed with PTSD. After the dogs diagnose, DeYoung made a bucket list of activities to do before his death. Cena received a final salute watched by service members and the public. The video has since gone viral, leaving viewers heartbroken watching the dogs final goodbye.
