This reminds me of the child pornography case a few years back, where detectives were able to identify the hotels where the abuse took place via imagery of the

This reminds me of the child pornography case a few years back, where detectives were able to identify the hotels where the abuse took place via imagery of the rooms. Interestingly, rather than figuring it out themselves (as the search space was too huge), they crowdsourced it by releasing images with the child photoshopped out.