The problem with that is that to people who like fence sitting, nothing is ever proven to them. Even with the CA case, even though she was found not guilty of killing Caylee, most of us believe that she did. However, there were obviously at least 12 people who believed she didn't.
Please don't take this as being snarky, but you can't really consider yourself a true fence sitter if you feel she is not guilty and are just waiting to see if she is proven to be guilty. The difference between you and I is that I believe DB is guilty. I admit to thinking that she is guilty. But, if they are able to find a person who confesses to having taken Lisa, or if Lisa comes home in some way, I will happily and gratefully admit I was wrong.