No it wasn't - Jeremy TOLD him June took the pictures to so she could control Sheila.
I really don't know where your info comes from,because in CC's book it DOESN'T mention control at all.
What it does say that Jeremy had added,was,quote " that she,June,could bring them out if she ever wanted to SHAME Sheila or use them to make her toe the line in future,unquote " Not CONTROL !!
Pages 93 AND 94 IN CC's book.