Well, we'd have to make sure that the signature is actually hers.

[ ... but they're not dead? That might actually mean something, to say the least. It's possible that the death was completely staged. Or they actually "died" but came back to life. That would only mean a fake suicide. ]

Mine is signed as well and says "Regardless, those matters are irrelevant. This is the truth".

But why would they want to fake their deaths...