User blog:Tommy,Klaus&Kol2012+/can a soul be killed by these methods?

While we have yet to actually see it, can a soul be destroyed by the following methods:

fire/explosion

beheading

poison

suffocation

disease

starvation/thrist

cause keep in mind went they were talking about donatellos soul, sam mentioned he didnt have one anymore, that amara ate it and it was gone.