Because he was probably too busy reading the bumps on their heads.
--------Page 755 of the CASO-------------------------
So O'Kelly's sketchy nonsense was to be kept quiet for as long as possible. That is the only reference to O'Kelly I found in the CASO. There is more to it, but I didn't find the rest of that page worth quoting.
Here is an interesting excerpt from a webpage critical of SCAN
This line of reasoning sounds like something Homer Simpson would say.
And Another
Just like any other real skill, it only takes a long weekend and a stack of Benjamins to learn!
And Another
Oh so it is based on gut feelings. Okay. That is good enough for me!
This is my source, which seems to say all that needs to be said about SCAN. This source contains sources for even further reading if you are interested.
http://skepdic.com/statementanalysis.html