Felinicide

Care killed the cat, for instance ; but Care was not guilty of felinicide.

Source: wiktionary

If he hated cats, there had been a dozen contrivances in the attic to suit the purpose of felinicide.

Source: wiktionary

After the pastor died, Uncle moved in with his widow sister; and as soon as little Orlando initiated his felinicides, filling the house with pots of cat organs and cremating the remains in the backyard, his uncle started to call him Buchenwald (pronounced Butchanval), which finally slimmed down to Butcha.

Source: wiktionary

Unable to safeguard the last stragglers of various endangered species, the worldwide ecological community is, in some areas, attempting full-on felinicide. People bomb cats' lairs with targeted viruses and deadly poisons.

Source: wiktionary