You really shouldn't lie about what is said, relieved of duties and fired are not the same thing. And the investigation is to see if anything was done wrong.
From the story,"Hettstedt pointed out that it was not illegal for zoo animals to be killed and sold. However a vet's permit is always needed."
And the people who slaughtered the animals were long time employees. At most they will be told to get proper permit and inspections in the future.
Ummmmm.
OK.
Do you happen to have the names of the individuals who did the slaughtering, the ones who sold the meat and the ones who bought it?