Is it permissible to kill a male cat that continuously harms other cats?

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Is it permissible to kill a male cat that continuously harms other cats?
Zaid Alsalami, Shaykh Dr Zaid Alsalami is an Iraqi born scholar, raised in Australia. He obtained a BA from Al-Mustafa University, Qom, and an MA from the Islamic College in London. He also obtained a PhD from... Answered 2 years ago

Bismihi ta'ala

This must be done by the decision of a vet or a professional, which means someone qualified should be consulted and should deal with it. Also, whatever is done should be done in a humane way, with a correct procedure and within legal perimeters. 

Otherwise, it could be haram.

And Allah knows best.