Frosty, a purebred Shiba Inu, was rescued two days after nine puppies and their two moms were left inside a plastic storage bin at Taylor Park in Largo on December 19.
Frosty was placed in the care of the Pawlicious Poochie Pet Rescue, which confirmed his passing on Wednesday morning following more than a week of treatment.
'The world's bravest little boy lost his fight late last night in my arms,' a statement said. 'We are all emotionally and physically defeated and exhausted.'
A necropsy revealed a 'huge hole' Frosty's small intestines, consistent with his 'clean snap break' of his back leg and dislocated jaw.
'Had they not been found when they did, I think we would have been looking at a different situation,' McKnight told WTSP.
