From USPS News Link:
Vernon, CT, Letter Carrier Shawn DuPerry became concerned when he noticed uncollected mail in a customer’s mailbox. Sensing something was wrong, DuPerry called the police, who entered the woman’s home and found her lying on the floor. She was conscious and breathing but in dire need of medical care. The woman was taken to a hospital, where she recovered. Her family later thanked DuPerry and credited him with saving the woman’s life.