Here is the vet's side of the story:
Fort Worth vet says accusations are a ‘bunch of hooey’ | Fort Worth | News fro...
Basically, the vet is claiming that the vet tech who told the owner that Sid is still alive is a disgruntled employee out to get him. Personally, I find it hard to believe that the vet tech and Sid's owner would conspire to ruin the reputation of a vet, especially when the police and the state veterinary board are being brought in to investigate. The only thing about the story that puzzles me is why did the owner leave Sid at the vet's for several months for treatment of an anal gland issue that was supposedly routine? I would have been suspicious and taken Sid from the vet long before then.