I said nothing derogatory about the folks on this thread, nor would I. I said a jury, except the most gullible, is not going to buy any theory that: 1) does not involve a real, living, person, and 2) against whom there is no evidence. "Maybe somebody else did it," in the face of all the evidence against KC, would not work.
I think a SODDI would be viable as a perp if we could name one, and provide evidence of involvement. Motive, method, and opportunity. How did the SODDI get the baby away from KC? How did the decomposition fluids get into KC's trunk? Why is KC continuing not to tell her "real story?" She can't be refraining to protect Caylee. Caylee is dead. The parents certainly do not appear to be afraid or in danger. They enjoy perfect freedom of movement Nor, would many people buy the idea that KC would sacrifice her life for GA and CA.
The evidence against a SODDI would have to be pretty compelling to overcome all the evidence against KC.
We can, of course, speculate all we want. But a SODDI who either doesn't exist, or against whom there is no evidence would simply not work in court. It would be another Scott Peterson disaster. He blamed hippie and satanists, IIRC. The jury did not buy it.
You're right, we don't know what other evidence LE has. But, we DO know that they haven't arrested anyone else. Hence, there is no evidence of anyone Else's culpability or involvement.
We DO have JB's statement that KC has a story that will result in her immediate exoneration. But, if he had such, he could spring her from prison. Which, he has not been able to do.
So.. who is the SODDI, and what and where is the evidence?