Unknown title of novel

title of novel with storyline the villain turned his brother into a moron so that he could use his brother's creation a machine that can control the weather to blackmail world leaders. At the end the villian was killed while airborne by a tornado created by the weather machine

Still looking for the book in the description above

>2 OLUWATISE1997:

You are more likely to get the help you need if you follow the Posting Guidelines: https://www.librarything.com/topic/329521

Do not start a new thread; instead, ask for a change of topic heading here: https://www.librarything.com/topic/349163