I'm the creator of a public Facebook group of my university. I added another administrator to help me to control the posts. Some time ago a member said that a post of his was deleted from the group. I didn't delete anything but maybe the other admin did, or the member deleted his own post. Now many people accuse me of deleting that post.
Is there any way to uncover who deleted the post?
Or is there any way to evidence that the other admin and I did not delete the post?