Actually from what I've seen his family has been getting ready to throw him under the bus. None of them have said they thought he was innocent, just that they wanted the "truth to come out" and "justice be done". They didn't say he was innocent when he pled not guilty.
JB and Michelle, Ben and Jessa talked about Josh, Anna, and "their family". He's part of his own family, not theirs. "Leave and cleave, baby."
I need to stop now, but fuck Josh forever.
(I'm shaking so it's hard to type. Sorry for any errors.)