Position Achievement News Today

This season. and some of the fatalities are being blamed on a human traffic jam. alexander field explains. >> reporter: for donald cash, it was the final frontier, the summit of mount evet. everest, position achievement for the 55-year-old who had met his life long goal, reaching the top of every mountain on every continent. but it would be his few last minutes. cash died of high altitude sickness. >> he fell on the way down just below the summit. and then they kind of carried him down, helped h...