I don't know if anyone heard this but click on the AvWeb URL to read the full story. With all th old J-3s and Super Cubs out there a check of the tail number periodically may be prudent.
http://www.avweb.com/avwebflash/news/John_Martha_King_Held_At_Gunpoint_203205-1.html
http://www.avweb.com/avwebflash/news/John_Martha_King_Held_At_Gunpoint_203205-1.html