Scarlet Blake, 26, hit Jorge Martin Carreno before pushing him into the River Cherwell in Oxford in July 2021.
The judge said a Netflix show about killing cats “played a part” in Blake’s plan. Blake was found guilty of murder at Oxford Crown Court last Friday.
The trial heard the defendant had been on the streets looking for potential victims.
Blake had already admitted a criminal damage charge in relation to the cat.
Alison Morgan KC and Denis Barry appeared for the Crown.
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