After four decades, a lawsuit and many documents later, is this case solved?  Here's the story.  Note the SciFi (now Syfy) connection.

NASA's resulting search, monitored by the court, was completed in August 2009. The outcome of the investigation, resuting in NASA reasearch, monitored by the court and completed in August 2009, has been posted online this month entitled "The Conclusion of the NASA Lawsuit – Concerning the Kecksburg, PA UFO case of 1965".  The report explains how the process worked and the results of the search after the 2007 settlement in federal court.  Here is the report.