Michael Ybarra, the Wall Street Journal Extreme Sports Correspondent was killed in a week-end mountain climbing trip in the Sierra Nevada mountain. I always looked forward to his reports and book reviews on extreme sports in Wall Street Journal. Only two daya ago, I read his review of the book "Buried in the Sky" about the tragedy at the K2 Mountain peak at the Himalayas.http://online.wsj.com/article/SB10001424052702303822204577466953130459274.html