I believe that JA was there when JB and his cohorts were standing outside the yellow tape, but I don't know if he was there every day during the entire procedure.
I think RK knew where the body was on August 11, 12 and 13, and at that point in time had the opportunity to remove the body.
As always my entire post is my opinion only.
You should read Valhall's assessment of the RK connection-
http://www.thehinkymeter.com/2011/05/28/caylee-anthony-case-review-of-trial-week-1/ the whole idea is preposterous. JB doesn't have holes in his defense he has bloody great craters and hopefully one of them will swallow him up.