Draft talk:Murder of Robert Piest

How do you determine if a photograph is fair use for a wikipedia article?
I'm wanting to post an undated photograph of Piest standing with sister and an unknown man at an undisclosed event (https://i.pinimg.com/originals/9c/8b/b8/9c8bb8a2828a91316f79cad4572c181b.jpg), but I'm not certain if it is copyrighted. Various versions of the photograph have been used by a variety of blog posts, books I've read, and even the earlier iterations of Gacy's wikipedia article. Thus, I'm not at all certain on the image's original source, but my assumptions is that it might've been shared with the Piest family with the investigators. As someone who knows next to nothing about Wikipedia's image policies, is that photograph permissible for this page? Randomuser335S (talk) 03:45, 16 May 2024 (UTC)