SORRY! No one can!!!! When someone dies - the can't be revived! The fact that they did NOT die - means the did NOT die! Because your heart stops, or your vitals drop to 0 is NOT death. Death is more complex than just that. Those are not the FINAL signs of death. When an organism is dead, nothing can change that, not even the great dog Jeehooberr.
And by the way, the aspects of these Not Dead Experiences can all be explained!
Read books by -The Tell-Tale Brain or Phantoms in the Brain: Probing the Mysteries of the Human Mind by Vilayanur S. Ramachandran
There is NO need for SUPERNATURAL occurrences to explain them.