The OSP has been investigating some allegations related to Ken Ofori-Atta, including attempted bribery and procurement issues.¹ ² There were also some reports of a businessman trying to bribe some MPs to support Ken Ofori-Atta.³ However, I couldn't find any information that suggests he is wanted in 4 suspected cases or that he has been declared a fugitive.
It's possible that you may have come across some misinformation or unverified reports. If you have any more specific information or context about the allegations you're referring to, I'd be happy to try and help you find more information.