Im going to call you out here because there is no solid evidence, and this sounds like a bunch of made up bullshit to me.
In fact, im fairly sure I saw a post many years ago where the Nigerian barrister Ahmed Abdallah, (who posted on these forums many years ago), literally knew Emmanuel. Ahmed never indicated at any time that Odinigwe had ANY sizable fortune whatsoever. This seems clear because Ahmed would have most certainly utilized his expertise and resources to help Mr Odinigwe with this supposed fortune, especially since he was an obvious expert in these matters. Instead, he spent his time helping people here in America, including some on these forums.