GRAND ISLAND, Neb. (AP) — The beloved giant canine ambassador at the Grand Island animal shelter has died.

Dubbed Angus T. Loner after his capture in December 2009, the gold and brown mastiff had to retire from his duties at the Central Nebraska Humane Society. He’d been diagnosed with wobbler syndrome, a neurologic disease that affected his legs.

His adopted mom, Laurie Dethloff, said Angus’ hind legs became so atrophied that he couldn’t walk. He was euthanized on Friday.

Angus evaded capture for around four years after being left outside a local meatpacking plant in 2005. After his capture, he was socialized and turned into the shelter’s mascot, greeting people as they arrived.

He was featured on Animal Planet’s “Dogs 101” television show in 2010.