A 19 year-old Mormon collapsed and died of heart failure in front of his stunned family moments after telling them his first mission would be to his dream country - Japan. Liam Mildenstein was on his way to Provo from his home in Miami for a vacation when he got the call and began reading aloud his two-year missionary assignment for The Church of Jesus Christ of Latter-day Saints. Mildenstein collapsed suddenly, falling backward onto the floor and never regained his pulse. The family called for emergency paramedics but about an hour later, the 19-year-old was pronounced dead. Mildenstein's family...