Requests to specific people (other than referring to Community posts) should go via other channels.
For this example,
http://www.wolfram.com/broadcast/search.php?video=1012,
you can click the
Contact link at the bottom of the page and send your question via a mechanism
that has a high probability of reaching Dr. Kelly.
If you refer to something in documentation or a web page, PLEASE include a link to it.