:The reason you are encountering resistance is because for several editors - myself included - it is not at all obvious that "the guy died". Your ancestry.com link, for example, lists multiple "Peter"s, even a "Peter Muia", but no "Peter Mui" (unless you want us to trawl through each page...?) 
 :Another reason is your insistence on assuming the worst. Here and elsewhere several editors have tried to help you to help us. I'm still willing to help you to help us. Tell another editor to "stop being a fucking prick" again, or use similar language, and I for one will cheerfully walk away, content in the knowledge that I tried. 
 :Cheers,