OKLAHOMA - The longest working dog in the Oklahoma Highway Patrol bomb squad has passed away at almost 12-years-old.
Nitro was a German Shepherd born in Slovakia who came to the Oklahoma Highway Patrol in 2008.
Nitro spent 10 years of his life serving the Oklahoma communities. In his 10 years, Nitro responded to 1,000 calls for service and thousands of training searches.
He conducted sweeps for Kiss, U2, three presidents and visiting first ladies. He responded to numerous bomb threats, OU and OSU football games, NBA games and more.
A plaque hanging in the bomb squad's office honors the squad's past K-9's, and now Nitro lives forever on that wall of fame.