This tragic news comes to us by way of NAR President Ted Cochran:

I regret to have to announce that our hobby has experienced an on-field fatality. Based on initial news reports, a very experienced Boy Scout leader helping out at the annual Rocket Rave event in California lost sight of a rocket after it was launched and was struck in the face when it came down. Please keep Michael Bentley in your prayers.

The most detailed report I have been able to find is here: http://www.pe.com/articles/bentley-786423-rocket-event.html

I have no additional information at this time.

Please review safety procedures at your next launch, including your procedures for tracking, pointing at, and calling heads up for rockets that present a hazard to participants and spectators.

A GoFundMe page has also been established in Mr. Bentley's name at https://www.gofundme.com/MikeBentley.