Clinton is married. Therefore, Clinton has a wife. Therefore, God exists. Therefore, God does not exist. If a benevolent and all-powerful god exists, then good people would not suffer as a result of natural disasters.
Good people do suffer as a result of natural disasters.
Therefore, a benevolent and all-powerful god does not exist. Show that the argument is invalid. If Mike is an excellent student, then Mike will get an 'A' in the class. Mike will get an 'A' in the class. Therefore, Mike is an excellent student.