if a non-muslim says the shahadah on his death bed and he never gets to finish it off cuz he passed away would he die as a Muslim?

Answer 1

No He would just die a Pagan

Answer 2

its the niyat (intent) that matters so he will

in my opinion die a Muslim

Answer 3

Yes, it is the intent and sincerity that matters, it does not have to be audible to others.