Man in his 60s declared dead comes back to life?

It has been reported that a man in his 60s who had been declared dead was actually very much alive right before his burial. 

Say what? *CuesBig Bang... "Still Alive."

On November 18, the man had collapsed in his home in the Saha district of the city of Busan. His neighbors discovered him and admitted him to the hospital, where he was taken to the emergency room to receive cardiopulmonary resuscitation (CPR). He was determined to be dead when he had no pulse.

But it turns out that he wasn't dead at all! That or he somehow came back to life, as right before he was placed inside a freezer at the mortuary, he was found to be breathing. The police immediately contacted the hospital and again took him to the emergency room, where it was determined that his pulse and blood pressure had returned to normal and that he had simply been in an unconscious state.

The police are currently investigating whether the doctor had made a mistake. If it really had been a mistake, then that's crazy. If this is actually a miraculous case in which the man came back to life, that's even crazier. In any case, the man's family and friends are probably reeling in shock like: