Just saw this on some other sites.
RIP John
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With great sadness I am sorry to inform my fellow racers that our dear friend, and long time racer John Lingenfelter has passed away. He passed away the evening of December 25th. Arrangements are pending at this time and will be posted at a later date. John will be greatly missed by his family and many friends.
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http://members3.boardhost.com/CompForum/msg/10465.html
Edit: This is the announcement from John's own site.
http://www.lingenfelter.com/jlstat2.asp