Zack Clement was a typical 17-year-old boy and was living an average life. That is until this teen was in his PE class and collapsed. The 17-year-old went into cardiac arrest, much to the shock of his teachers and classmates. The teen was declared dead for an entire 20 minutes before he came back to life.
When he came back, he told his parents what he saw after he had died. What they heard left them in a state of shock and tears!
Source: Chris Enloe