A Northerner's hate speech to non-Northerners in Nigeria

In the wake of the uncertainty of the health of the President of The Federal Republic of Nigeria, President Muhammadu Buhari, a Facebook user by the name Aliyu Hashim shared quite a disturbing post threatening non-Northerners in the West African nation (Nigeria).
I implore Facebook to swiftly take down this hate post - as I understand it's against there policy.
And someone please borrow this Mallam some sense.
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