"Sick" Husband Calls His Wife A Witch On Social Media... says she'll kill him

I just hope his wife and his family members are trying to get help for him, if he's truly sick. I wonder why such a grown man will feel comfortable to write something like this about his wife online.

According to report by Malawi News, he's a journalist identified as Collins Mtika. They say this isn't the first time he would write such about his wife openly.

Report has it that a close family source said the wife suffered distress over the post. 
She is however not taking any action against her husband, because he is said not to be 'well mentally'.