But the photograph wouldn't get him outta the jail any way.
Possibly. But depending on the content, positioning, other items in the pic and combined with the logs, the wet blood photos etc, it could potentially cause serious difficulties for the authorities. There would certainly be explaining to do. Which fits in with their current strategy, which is to hope something doesn't come to light... but if it does, find a lame excuse to explain it.
Obstruct / dripfeed / explain piecemeal.