the city of tyrone missouri population 50 on thursday night nine people were found dead after harrowing house to house shooting rampage. our will ripley has the latest. >> police in southeast missouri are awaiting the results of a postmortem examination of the mother of the gunman. they believe she died of natural causes and they're wondering if her death somehow triggered this shooting rampage. >> reporter: no stoplight in tyrone missouri, no post office or gas station, but this tiny town is the scene of the deadliest mass shooting in recent missouri history. john schrieber got a fen call to go to his cousin's house down the street. >> driving by you know it just -- you can tell that he was dead already. >> reporter: schrieber thinks his cousin and his wife were killed quickly. their car and washing machine still running. their 13-year-old son alive and terrified in a back bedroom.