Not a bad theory, however she was getting money from using her mother's credit card and allegedly took $700 from Amy (forged checks). I also agree with others if there were any videos someone in the media would've gotten hold of it already. MOO
A little late posting, but my feeling has always been 22yr old girls that steal that much $$ that often are doing it for drugs. I still have a theory that Casey was either on drugs and/or was "working" with a drug dealer and that is where she would go every day when she left to go to "Work," and thus could take Caylee w/her. In the course of this, being that drug dealers and such are usually seedy, scary people, something bad happened to Caylee and Casey is covering b/c she is afraid the drug dealers will come after the rest of her family or afraid of admitting to the drug dealing/using and child endangerment. Along w/my theory I go back and forth believing either Caylee was kille b/c of this situation somehow or was taken and is being held, although the latter case is unlikely b/c even if she was taken by now she's probably been killed. I dunno if this theory is realistic, it may be a stretch but I dated a a guy in my early 20s who went on to become a big druggie and drug dealer and he lied constantly and stole from everyone he knew, incl. me. The people he hung with scared me and I got out of a bad situation. I guess I am just trying to come up w/possible scenarios b/c I don't want to believe a mother could murder her own child.