Final salute to NYPD K-9 officer

NYPD officers stood at attention as they said goodbye to their friend and colleague, transit police K-9 officer Axle.

According to a Tweet posted by the NYPD on Sunday, Axle took one last walk with his partner, Officer Nunez, after a long battle with cancer.

His colleagues showed their respect with a final salute to one of their own and a true hero.