She should go for paternity test yo prove him wrong. Some of this men are just so dumb. They want to enjoy, but dont want responsibility. But still forget theere's somethung called condom. It takes two to make babies and not one.

Stupid country! Now i see y everyone is running from u especially young ones 

May thunder strike them in Jesus name.

Point of correction no woman is useless. No matter the case a man should never do that to his wife, it's pure wickedness.
 

To be honest with you. I would report it to the police and nigeria high comission. Then move away from the area, but still try to contact the wife to know how she's doing.