I think the correct spelling is Onaiwu Osahon. Do you know where he schooled and graduated from and the year? . The can facilitate things for you.
I tried google search and found one Osahon Godwin Onaiwu with this e.mail (osahon4reality@yahoo.co.uk) .
He posted a message at http://www.strangefyr.com/ccolleges/cgi-bin/msgboard/view.cgi?number=35&action=previous
I hope this will help you. Even is he isnt the same person, contact him and he may likely know this other one.
Bye