[Aquinasfan]

executed approximately 8 dogs

execute
3. to inflict capital punishment on; put to death according to law.
4. to murder; assassinate.

You can slaughter a dog, but you can't execute a dog. That is, unless you consider a dog to be a human being.

[PurpleMan]

However, it seems that according to the law “execute” is the appropriate term.

Sorry you don’t like how it is used.

[jocon307]

“...but you can’t execute a dog. “

Yes, that usage has really been bothering me too.