I'm not convinced either way about Jackson. But these sources don't seem credible to me. I wouldn't believe anything said until it gets documented with the BBC or some other large level news organisation or even a reputed music publication. Sources need to be validated in order to be given credence. The internet is dodgy like that so I would suggest waiting until it's called a hoax or given wider exposure. I'm doubtful of these kinds of stories though so think it's the former.